研究業績

研究業績 2020

1. Control of crystal structure and performance evaluation ofmulti-piezo material of Li1-xNaxNbO3:Pr3+, Hirotaka HARA, Chao-Nan XU, Ruiping WANG, Xu-Guang ZHENG, Maiko NISHIBORI and Eiji NISHIBORI, J. Ceram. Soc. Jpn., 128, 518-522, 2020

2. Hydrogen atoms in bridging positions from quantum crystallographic refinements: influence of hydrogen atom displacement parameters on geometry and electron density, Lorraine A. Malaspina, Anna A. Hoser, Alison J. Edwards, Magdalena Woinska, Michael J. Turner, Jason R. Price, Kunihisa Sugimoto, Eiji Nishibori, Hans-Beat Burgi, Dylan Jayatilaka and Simon Grabowsky, CrystEngComm, 2020,22, 4778-4789

3. Characterisation of the temperature-dependent M1 to R phase transition in W-doped VO2 nanorod aggregates by Rietveld refinement and theoretical modelling, Lei Miao, Ying Peng, Dianhui Wang, Jihui Liang, Chaohao Hu, Eiji Nishibori, Lixian Sun, Craig A. J. Fisher and Sakae Tanemura, Phys. Chem. Chem. Phys., 2020,22, 7984-7994

4. Increased electrical conduction with high hole mobility in anti-ThCr2Si2-type La2O2Bi via oxygen intercalation adjacent to Bi square net, Kota Matsumoto, Hideyuki Kawasoko, Hidetaka Kasai, Eiji Nishibori and Tomoteru Fukumura, Appl. Phys. Lett. 116, 191901 (2020)

5. Tetragonality induced superconductivity in santi-ThCr2Si2-type RE2O2Bi (RE = rare earth) with Bi square net, Ryosuke Sei, Hideyuki Kawasoko, Kota Matsumoto, Masato Arimitsu, Kyohei Terakado, Daichi Oka, Shintaro Fukuda, Noriaki Kimura, Hidetaka Kasai, Eiji Nishibori, Kenji Ohoyama, Akinori Hoshikawa, Toru Ishigaki, Tetsuya Hasegawa, and Tomoteru Fukumura Dalton Trans. 49, 3321-3325 (2020)

研究業績 2019

1. Pressure-Induced Collapse of the Guest Eu Off-Centering in Type-I Clathrate Eu8Ga16Ge30. Naoki Ishimatsu, , Kei Yokoyama, Takahiro Onimaru, Toshiro Takabatake, Koichiro Suekuni, Naomi Kawamura, Satoshi Tsutsui, Masaichiro Mizumaki, Toshiaki Ina, Tetsu Watanuki, Vera Cuartero, Olivier Mathon, Sakura Pascarelli, Eiji Nishibori, and Tetsuo Irifune. J. Phys. Soc. Jpn. 88, 114601 (2019) [9 Pages]

2. Hemozoin produced by mammals confers heme tolerance. Rini H Pek, Xiaojing Yuan, Nicole Rietzschel, Jianbing Zhang, Laurie Jackson, Eiji Nishibori, Ana Ribeiro, William Simmons, Jaya Jagadeesh, Hiroshi Sugimoto, Md Zahidul Alam, Lisa Garrett, Malay Haldar, Martina Ralle, John D Phillips, David M Bodine, Iqbal Hamza. eLife 2019, 8, e49503.

3. Aspherical and covalent bonding character of d electrons of molybdenum from synchrotron x-ray diffraction. T. Sasaki, H. Kasai, E. Nishibori. J. Phys. Commun. 2019, 3, 095009.

4. Low-Temperature Structural Phase Transitions in ThermoelectricTetrahedrite, Cu12Sb4S13, and Tennantite, Cu12As4S13. Venkatesha R. Hathwar, Atsushi Nakamura,Hidetaka Kasai, Koichiro Suekuni, Hiromi I. Tanaka, Toshiro Takabatake, Bo B. Iversen and Eiji Nishibori. Cryst.Growth Des. 2019, 19, 3979-3988.

5. Bpytrisalen/Bpytrisaloph: A Triangular Platform That Spatially Arranges Different Multiple Labile Coordination Sites, T. Nakamura, Y. Kawashima, E. Nishibori, T. Nabeshima. Inorg. Chem. 2019, 58, 3863-7872

6. 粉末X線回折による精密構造解析. 佐々木 友彰, 出口 裕佳, 笠井 秀隆, 西堀 英治 日本結晶学会誌 61, 123-129 (2019)

7. Porous Molecular Conductor: Electrochemical Fabrication of Through-Space Conduction Pathways among Linear Coordination Polymers. L. Qu, H. Iguchi, S. Takaishi, F. Habib, C. Leong, D. D'Alessandro, T. Yoshida, H. Abe, E. Nishibori, M. Yamashita. J. Am. Chem. Soc. 2019, 141, 6802-6806.

8. Dynamic Ag+-intercalation with AgSnSe2 nanoprecipitates in Cl-doped polycrystalline SnSe2 toward ultra-high thermoelectric performance. Chengyan Liu, Zhiwei Huang, Dianhui Wang, Xiuxia Wang, Lei Miao, Xiaoyang Wang, Shaohai Wu, Nozomu Toyama, Toru Asaka, Junliang Chen, Eiji Nishibori and Li-Dong Zhao. J. Mater. Chem. A, 2019, 7, 9761-9772.

9. Hydrothermal reactor for in-situ synchrotron radiation powder diffraction at SPring-8 BL02B2 for quantitative design for nanoparticle. Tomoki Fujita, Hidetaka Kasai, Eiji Nishibori, The Journal of Supercritical Fluids 2019, 147, 172-178.

10. Extraordinary Thermoelectric Performance in MgAgSb Alloy with Ultralow Thermal Conductivity, Yanyan Zheng, Chengyan Liu, Lei Miao, Chao Li, Rong, Huang, Jie Gao, Xiaoyang Wang, Junliang Chen, Yanchun Zhou and Eiji Nishibori, Nano Energy, 2019, 59, 311-320.

11. Measurement of Electric Fields Experienced by Urea Guest Molecules in the 18-Crown-6:Urea (1:5) Host-Guest Complex: An Experimental Reference Point for Electric-Field-Assisted Catalysis. Ming W. Shi, Sajesh P. Thomas, Venkatesha R Hathwar, Alison J. Edwards, Ross O. Piltz, Dylan Jayatilaka, George A. Koutsantonis, Jacob Overgaard, Eiji Nishibori, Bo B. Iversen, and Mark A. Spackman J. Am. Chem. Soc. 2019, 141, 3965-3975.

12. Single-component molecular conductor [Pt(dmdt)2]-a three-dimensional ambient-pressure molecular Dirac electron system. Biao Zhou, Shoji Ishibashi, Tatsuru Ishii, Takahiko Sekine, Ryosuke Takehara, Kazuya Miyagawa, Kazushi Kanoda, Eiji Nishibori and Akiko Kobayashi. Chem. Commun., 2019, 55, 3327-3330.

13. Effects of Substituents on the Blue Luminescence of Disilane-Linked Donor-Acceptor-Donor Triads. T. Usuki , K. Omoto, M. Shimada, Y. Yamanoi , H. Kasai, E. Nishibori and H. Nishihara, Molecules 2019, 24(3), 521.

14. Atomic-scale phonon scatterers in thermoelectric colusites with a tetrahedral framework structure. K. Suekuni, Y. Shimizu, E. Nishibori, H. Kasai, H. Saito, D. Yoshimoto, K. Hashikuni, Y. Bouyrie, R. Chetty, M. Ohta, E. Guilmeau, T. Takabatake, K. Watanabe, M. Ohtaki, J. Mater. Chem. A, 2019, 7, 228-235.

研究業績 2018

1. Structure factors and charge-density study of diamond at 800K. Y. Deguchi, E. Nishibori. Acta Cryst. (2018). B74, 651-659.

2. Structural Modulations in the Intermediate Phase of Antiferroelectric PbHfO3. H. Fujishita, K. Kato, E. Nishibori, M. Takata, M. Sakata, S. Katano. J. Phys. Soc. Jpn, 87, 124603 (2018)

3. Tightly binding valence electron in aluminum observed through X-ray charge density study. Tomoaki Sasaki, Hidetaka Kasai, Eiji Nishibori, Scientific Reports 8,11964 (2018)

4. 放射光X線粉末回折による確度の高い構造因子の計測および未知構造決定 西堀 英治 日本結晶学会誌 60, 88-95 (2018)

5. Characterization of electronic features of intermolecular interactions involving organic fluorine: Inputs from in situ cryo-crystallization studies on -F and -CF3 substituted anilines. P. K. Mondal, V. R. Hathwar, D. Chopra. J. Fulu. Chem. 211, 37-51, (2018)

6. Aggregation-Induced Emission Enhancement from Disilane-Bridged Donor-Acceptor-Donor Luminogens Based on the Triarylamine Functionality. T. Usuki, M. Shimada, Y. Yamanoi , T. Ohto, H. Tada, H. Kasai, E. Nishibori, and H. Nishihara. ACS Appl. Mater. Interfaces, 10, 12164, 2018.

7. Role of vacancies in the high-temperature pseudodisplacive phase transition in GeTe. M. Sist, H. Kasai, E. M. J. Hedegaard, B. B. Iversen. Phys. Rev. B, 97, 094116 (2018)

8. Enhanced thermoelectric performance and high-temperature thermal stability of p-type Ag-doped beta-Zn4Sb3. L. R. Song, A. B. Blichfeld, J. W. Zhang, H. Kasai, B. B. Iversen. J. Mater. Chem. A. 6, 4079-4087 (2018).

9. Retreat from Stress: Rattling in a Planar Coordination. K. Suekuni, C. H. Lee, H. I. Tanaka, E. Nishibori, A. Nakamura, H. Kasai, H. Mori, H. Usui, M. Ochi, T. Hasegawa, M. Nakamura, S. Ohira-Kawamura, T. Kikuchi, K. Kaneko, H. Nishiate, K. Hashikuni, Y. Kosaka, K. Kuroki and T. Takabatake. Adv. Mater.,30, 1706230, 2018.

10. A fluorescent microporous crystalline dendrimer discriminates vapour molecules. Sae Nakajima, Ken Albrecht, Soh Kushida, Eiji Nishibori, Takashi Kitao, Takashi Uemura, Kimihisa Yamamoto, Uwe H. F. Bunz, Yohei Yamamoto. Chemical Communications 54, 2534-2537, 2018.

11. X-ray electron density investigation of chemical bonding in van der Waals materials, H. Kasai, K. Tolborg, M. Sist, J. Zhang, V. R. Hathwar, M. O.Filso, S. Cenedese, K. Sugimoto, J. Overgaard, E. Nishibori and B. B. Iversen. Nat. Mater., 17, 249-252, 2018.

研究業績 2017

1. Multi-temperature structure of thermoelectric Mg2Si and Mg2Sn. H. Kasai, L. R. Song, H. L. Andersen, H. Yin, B. B. Iversen. Acta Crystallogra. B73, 1158-1163 (2017)

2. Formation and Characterization of Hydrogen Boride Sheets Derived from MgB2 by Cation Exchange. H. Nishino, T. Fujita, N. T. Cuong, S. Tominaka, M. Miyauchi, S. Iimura, A. Hirata, N. Umezawa, S. Okada, E. Nishibori, A. Fujino, T. Fujimori, S.i Ito, J. Nakamura, H.o Hosono and T. Kondo. J. Am. Chem. Soc. 139, 13761-13769, 2017.

3. Mechano-, thermo-, solvato-, and vapochromism in bis(acetato-κ1O) [4'-(4-(diphenylamino)phenyl)-] (2,2':6',2''-terpyridine-κ3N, N’, N'')zinc(II) and its polymer. T. Tsukamoto, R. Aoki, R. Sakamoto, R. Toyoda, M. Shimada, Y. Hattori, Y. Kitagawa, E. Nishibori, M. Nakano and H. Nishihara*a Chem. Comm. 53, 9805-9808, 2017.

4. High-throughput powder diffraction measurement system consisting of multiple MYTHEN detectors at beamline BL02B2 of SPring-8. S. Kawaguchi, M. Takemoto, K. Osaka, E. Nishibori, C. Moriyoshi, Y. Kubota, Y. Kuroiwa, and K. Sugimoto. Rev. Sci. Inst. 88, 085111, 2017.

5. Accurate charge densities from powder X-ray diffraction - a new version of the Aarhus vacuum imaging-plate diffractometer. K. Tolborg, M. R. V. Jorgensen, S. Christensen, H. Kasai, J. Becker. P. Walter, A.C. Dippel, J. Als-Nielsen, B. B. Iversen. Acta Crystallogra. B 73, 521-530 (2017).

6. Successive Dimensional Transition in (TMTTF)2PF6 Revealed by Synchrotron X-ray Diffraction. S. Kitou, T. Fujii, T. Kawamoto, N. Katayama, S. Maki, E. Nishibori, K. Sugimoto, M. Takata, T. Nakamura, and H. Sawa. Phys. Rev. Lett. 119, 065701, 2017.

7. Molecular recognition by multiple metal coordination inside wavy-stacked macrocycles. T. Nakamura, Y. Kaneko, E. Nishibori, T. Nabeshima, Nature COmmunications, doi: 10.1038/s41467-017-00076-8.2017

8. beta-IminoBODIPY oligomers: facilely accessible pi-conjugated luminescent BODIPY arrays. M. Tsuchiya, R. Sakamoto, M. Shimada, Y. Yamanoi, Y. Hattori, K. Sugimoto, E. Nishibori, H. Nishihara, Chem. Comm. 53, 3509-7512, 2017

9. Revealing the slow decomposition kinetics of type-I clathrate Ba8Ga16Ge30. H. Reardon, A. B. Blichfeld, H. Kasai, H. Yin, E. D. Bojesen, B. B. Iversen. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 19, 15734-15744, 2017.

10. High-Temperature Crystal Structure and Chemical Bonding in Thermoelectric Germanium Selenide (GeSe). M. Sist, C. Gatti, P. Norby, S. Cenedese, H. Kasai, K. Kato, B. B. Iversen. CHEMISTRY-A EUROPEAN JOURNAL, 23, 6888-6895, 2017.

11. Variable-temperature structural studies on valence tautomerism in cobalt bis(dioxolene) molecular complexes. V. R. Hathwar, M. Stingaciu, B. Richter, J. Overgaard, B. B. Iversen. Acta Cryst. B73, 304-312, 2017.

12. Low-Temperature Anharmonicity in CsCl, Mattia Sist, K.F.F. Fischer, H. Kasai and B. B. Iversen*, Angew. Chem., Int. Ed. 56, 3625-3629 (2017).

13. Solvent-Controlled Doublet Emission of an Organometallic Gold(I) Complex with a Polychlorinated Diphenyl(4-pyridyl)methyl Radical Ligand: Dual Fluorescence and Enhanced Emission Efficiency. Yasuyo Ogino, Tetsuro Kusamoto, Yohei Hattori, Masaki Shimada, Mizuho Tsuchiya, Yoshinori Yamanoi, Eiji Nishibori, Kunihisa Sugimoto, and Hiroshi Nishihara. Inorg. Chem., (2017), 56, 3909-3915; DOI: 10.1021/acs.inorgchem.6b02864

14. Characterization of fluorine-centered ‘F...O’ sigma-hole interactions in the solid-state. A. Sirohiwal, V. R. Hathwar, D. Dey, R. Regunathan, D. Chopra, Acta Cryst. 2017, B73 140-152,doi:10.1107/S2052520616017492.

15. Neutron and X-ray investigations of the Jahn-Teller switch in partially deuterated ammonium copper tutton salt, (NH4)2[Cu(H2O)6](SO4)2 Jahn-Teller switch. M.R.V. Jorgensen, P.M.B. Piccoli, V. R.Hathwar, X.Wang, C.M. Hoffmann, A.A.Yakovenko, G.J. Halder, J.A. Schlueter, B.B. Iversen, & A.J. Schultz, Acta Cryst. Acta Cryst. (2017). B73, 87-93 doi:10.1107/S2052520616018412.

16. A simple zinc(II) complex that features multi-functional luminochromism induced by reversible ligand dissociation. Takamasa Tsukamoto, Risa Aoki, Ryota Sakamoto, Ryojun Toyoda, Masaki Shimada, Yohei Hattori, Mizuki Asaoka, Yasutaka Kitagawa, Eiji Nishibori, Masayoshi Nakano and Hiroshi Nishihara. Chem. Commun., (2017),53, 3657-3660; DOI: 10.1039/C6CC10190A, Communication

17. Spatial distribution of electrons near the Fermi level in the metallic LaB6 through accurate X-ray charge density study. H. Kasai, and E. Nishibori, Sci. Rep. 7, 41375; doi: 10.1038/srep41375 (2017).

研究業績 2016

1. Carrier concentration dependence of structural disorder in thermoelectric Sn1-xTe.M. Sist, E. M. J. Hedegaard, S. Christensen, N. Bindzus, K. F. F. Fischer, H. Kasai, K. Sugimoto, B. B. Iversen, IUCRJ (2016), 3, 377-388.

2. Electron Density Analysis of the "O-O" Charge-Shift Bonding in Rubrene Endoperoxide,V. R. Hathwar, M. K. Thomsen, M. A. H. Mamakhel, M. O. Filso, J. Overgaard, B. B. Iversen, J. Phys. Chem. A, (2016),120,7510-7518

3. Antiferromagnetic Ordering in the Single-Component Molecular Conductor, [Pd(tmdt)2]. Satomi Ogura, Yuki Idobata, Biao Zhou, Akiko Kobayashi, Rina Takagi, Kazuya Miyagawa, Kazushi Kanoda, Hidetaka Kasai, Eiji Nishibori, Chikatoshi Satoko, Bernard Delley, Inorg. Chem. 2016, 55, 7709-7716.

4. Bis(dipyrrinato)zinc(II) complexes: emission in the solid state. Mizuho Tsuchiya, Ryota Sakamoto*, Masaki Shimada, Yoshinori Yamanoi, Yohei Hattori, Kunihisa Sugimoto, Eiji Nishibori, Hiroshi Nishihara*. Inorg. Chem.(2016) 55, 5732-5734.

5. Superionic Conduction in Co-Vacant P2-NaxCoO2 Created by Hydrogen Reductive Elimination, K. Kato, H. Kasai, A. Hori, M. Takata, H. Tanaka, S. Kitagawa, A. Kobayashi, N. Ozawa, M. Kubo, H. Arikawa, T. Takeguchi, M. Sadakiyo, M. Yamauchi, Chemistry-An Asian Journal (2016), 11, 1537-1541

6. Direct observation of spin-coating process in PS-b-P2VP thin films. Hiroki Ogawa*, Mikihito Takenaka, Tsukasa Miyazaki, Keisuke Shimokita, Akihiko Fujiwara, Eiji Nishibori, Masaki Takata, Macromolecules (2016), 49, 3471-3477.

7. Multiple powder diffraction data for an accurate charge density study using synchrotron radiation X-ray. Hidetaka Kasai, Eiji Nishibori*. Phys. Scripta. (2016) 91, 043009 (7pages).

8. A Single-component Molecular Conductor with Metal-metal Bonding, [Pd(hfdt)2] (hfdt = bis(trifluoromethyl) tetrathiafulvalenedithiolate). Biao Zhou, * Satomi Ogura, Qi Zhi Liu, Hidetaka Kasai, Eiji Nishibori, Heng Bo Cui, Reizo Kato, and Akiko Kobayashi. Chem. Lett. (2016) 45, 303-305.

9. Bright Solid-State Emission of Disilane-Bridged Donor-Acceptor-Donor and Acceptor-Donor-Acceptor Chromophores. Masaki Shimada, Mizuho Tsuchiya, Ryota Sakamoto, Yoshinori Yamanoi,* Eiji Nishibori, Kunihisa Sugimoto, and Hiroshi Nishihara* Angew. Chem. Int. Ed. (2016) 128, 3074-3078.

10. Fluorescence and phosphorescence of a series of silicon-containing six-membered-ring molecules. Takayuki Nakashima a, Masaki Shimada a, Yu Kurihara a, Mizuho Tsuchiya a, Yoshinori Yamanoi a,*, Eiji Nishibori b, Kunihisa Sugimoto c, and Hiroshi Nishihara a,* J. Organometallic Chemistry. (2016) 805, 27-33.

11. Metal-semiconductor transition in tetrahedrite Cu12Sb4S13. Hiromi I. Tanaka, Koichiro Suekuni, Kazunori Umeo, Toshiki Nagasaki, Hitoshi Sato, Galif Kutluk, Eiji Nishibori, Hidetaka Kasai, and Toshiro Takabatake, J. Phys. Soc. Jpn. 85, 014703 (2016).

研究業績 2015

1. Bonding Nature of LiCoO2 by Topological Analysis of Electron Density from X-ray Diffraction. E. Nishibori, T. Shibata, W. Kobayashi, and Y. Moritomo. Electrochemistry, (2015) 83, 840-842.

2. Coordination nano-space as stage of hydrogen ortho?para conversion. Takashi Kosone, Akihiro Hori, Eiji Nishibori*, Yoshiki Kubota, Akio Mishima, Masaaki Ohba, Hiroshi Tanaka, Kenichi Kato, Jungeun Kim, Jose Antonio Real, Susumu Kitagawa, Masaki Takata*. Royal Society Open Science, (2015), 2, 150006.

3. Absence of Jahn?Teller transition in the hexagonal Ba3CuSb2O9 single crystal. Naoyuki Katayama, Kenta Kimura, Yibo Han, Joji Nasu, Natalia Drichko, Yoshiki Nakanishi, Mario Halim, Yuki Ishiguro, Ryuta Satake, Eiji Nishibori, Masahito Yoshizawa, Takehito Nakano, Yasuo Nozue, Yusuke Wakabayashi, Sumio Ishihara, Masayuki Hagiwara, Hiroshi Sawa, and Satoru Nakatsuji. PNAS (2015) 112, 9305-9309.

4. Element-selective visualization for materials science using synchrotron X-ray two-wavelength anomalous powder diffraction data. Eiji Nishibori, Masaki Takata, Trans. Mat. Res. Soc. Jpn. (2015) 40[2], 165-168.

5. Structural Basis for Polymer Packing and Solvation Properties of the Organogermanium Crystalline Polymer Propagermanium and Its Derivatives. Nobuhiro Mizuno, Eiji Nishibori, Mitsuru Oka, Takahito Jomori, Masaki Takata, Takashi Kumasaka, J. Pharm. Sci. (2015) 104, 2482-2488.

6. Bis(dipyrrinato)metal(II) coordination polymers: Crystallization, exfoliation into single wires, and electric conversion ability. Ryota Matsuoka, Ryojun Toyoda, Ryota Sakamoto*, Mizuho Tsuchiya, Ken Hoshiko, Tatsuhiro Nagayama, Yoshiyuki Nonoguchi, Kunihisa Sugimoto, Eiji Nishibori, Tsuyoshi Kawai and Hiroshi Nishihara*. Chemical Science (2015) 6, 2853-2858.

7. Morphotropic Phase Boundary in the Pb-free (1-x)BiTi3/8Fe2/8Mg3/8O3 -xCaTiO3 System: Tetragonal Polarization and Enhanced Electromechanical Properties. Pranab Mandal, Alicia Manjon-Sanz, Alex J. Corkett, Tim P. Comyn, Karl Dawson, Timothy Stevenson, James Bennett, Leonard F. Henrichs, Andrew J. Bell, Eiji Nishibori, Masaki Takata, Marco Zanella, Michelle R. Dolgos, Umut Adem, Xinming Wan, Michael J. Pitcher, Simon Romani, T. Thao Tran, P. Shiv Halasyamani, John B. Claridge,* and Matthew J. Rosseinsky*. Advanced Materials. (2015) 27, 2883-2889.

8. Revisit: High resolution Charge Density Study of α-rhombohedral boron using third-generation SR data at SPring-8. Eiji Nishibori*, Hiroshi Hyodo, Kaoru Kimura, Masaki Takata. Solid State Sciences (2015), 47, 27-31.

9. Optical Properties of Disilane-Bridged Donor-Acceptor Architec-tures: Strong Effect of Substituents on Fluorescence and Non-linear Optical Properties. Masaki Shimada, Yoshinori Yamanoi*, Tomonori Matsushita, Takashi Kondo, Eiji Nishibori, Akari Hatakeyama, Kunihisa Sugimoto, and Hiroshi Nishihara*. J. Am. Chem. Soc. 137 (2015) 1024-1027

10. One-step hydrothermal synthesis of V1-xWxO2(M/R) nanorods with superior doping efficiency and thermochromic properties. Ru Chen, Lei Miao*, Haoliang Cheng, Eiji Nishibori*, Cheng Yan Liu, Toru Asaka, Yuji Iwamoto, Masaki Takata and Sakae Tanemura. J. Mater. Chem. A. 3 (2015) 3726-3738.

研究業績 2014

1. Crystal structure of (Z )-1-(ferrocenylethynyl)-10-(phenylimino) anthracen-9(10H)-one from synchrotron X-ray powder diffraction. Eiji Nishibori, Shinobu Aoyagi, Makoto Sakata, Ryota Sakamoto and Hiroshi Nishihara. Acta Cryst. (2014). E70, 573-576

2. A study of magnetic moments of CeRh3B2 by X-ray magnetic diffraction experiments. Ito, M; Suzuki, K; Tadenuma, T; Nagayasu, R; Sakurai, Y; Onuki, Y; Nishibori, E; Sakata, M. Journal of Physics Conference Series. 502, 012018 (2014).

3. Observation and Characterization of Fragile Organometallic Molecules Encapsulated in Single-Wall Carbon Nanotubes. Daisuke Ogawa, Kitaura, T. Saito, Shinobu Aoyagi, Eiji Nishibori, Makoto Sakata, T. Nakamura and Hisanori Shinohara, Journal of Nanomaterials. 539295 (2014).

4. Structure of Tm2 and Tm2C2 Encapsulated in Low-Symmetry C82(Cs(6)) Fullerene Cage by Single Crystal X-ray Diffraction. Sado, Yuki; Aoyagi, Shinobu; Izumi, Noriko; Kitaura, Ryo; Kowalczyk, Timothy; Wang, Jian; Irle, Stephan; Nishibori, Eiji; Sugimoto, Kunihisa; Shinohara, Hisanori, Chem. Phys. Lett.600, (2014) 38-42

5. Smart Crystallography in materials science at SPring-8: In the case of endohedral metallofullerene, E. Nishibori, S. Maki, M. Takata. JPS Conference Proceeding 1, 014001 (2014).

6. Hirshfeld atom refinement for modelling strong hydrogen bonds. M. Woinska, D. Jayatilaka, M. A. Spackman, A. J. Edwards, P. M. Dominiak, K. Wozniak, E. Nishibori, K. Sugimoto and S. Grabowsky. Acta Cryst. (2014). A70, 483-498

7. 放射光が拓く化学の現在と未来―物質科学にイノベーションをもたらす光、 株式会社化学同人、西堀英治、Part  II 3章 並列計算によるab initio構造解析法の開発/GA pp49-54 (2014)

研究業績 2013

1. Comparative study of X-ray charge density data on CoSb3. Mette Stokkebroe Schmokel, Lasse Bjerg, Finn Krebs Larsen, Jacob Overgaard, simone cenedese, Mogens Christensen, Georg Madsen, Carlo Gatti, Eiji Nishibori, Kunihisa Sugimoto, Masaki Takata and Bo Brummerstedt Iversen. Acta Crystallographica Section A.69, 570-582 (2013)

2. *Perfectly Ordered Two-Dimensional Layer Structures Found in Some Endohedral Metallofullerenes. Sachiko Maki, Eiji Nishibori, Yutaka Kitamura, Ryo Kitaura, Masayuki Ishihara, Takayuki Aono, Shinobu Aoyagi, Masaki Takata, Makoto Sakata, Hisanori Shinohara. Crystal Growth and Design.13, (2013) 3632-3636.

3. Quantum fluctuations in spin-ice-like Pr2Zr2O7. K. Kimura, S. Nakatsuji, J. -J. Wen, C. Broholm, M. B. Stone, E. Nishibori & H. Sawa. Nature Communications, 4, (2013) 1934.

4. 1,4-Bis(ferrocenylphenylethynyl)anthraquinone from synchrotron X-ray powder diffraction. Sachiko Maki, Eiji Nishibori*, Shinobu Aoyagi, Makoto Sakata, Masaki Takata, Mio Kondo, Masaki Murata, Ryota Sakamoto and Hiroshi Nishihara. Acta. Cryst. C69., 696-703. Cover Picture. Highlighted Article

5. Element-selective charge density visualization of endohedral metallofullerenes using synchrotron X-ray multi-wavelength anomalous powder diffraction data. Sachiko Maki, Eiji Nishibori, Daisuke Kawaguchi, Makoto Sakata, Masaki Takata, Takashi Inoue and Hisanori Shinohara. J. Appl. Cryst.46, (2013) 649-655. Highlighted Article

6. Structure of Tm@C82(I) Metallofullerene by Single-Crystal X-ray Diffraction Using the 1:2 Co-Crystal with Octaethylporphyrin Nickel (Ni(OEP)). Yuki Sado, Shinobu Aoyagi, Ryo Kitaura, Yasumitsu Miyata, Eiji Nishibori, Hiroshi Sawa, Kunihisa Sugimoto, and Hisanori Shinohara. J. Phys. Chem. C, 117, (2013), 6437-6442..

7. Room-temperature proton transport and its effect on thermopower in a solid ionic semiconductor, TTFCOONH4. Yuka Kobayashi, Takenori Fujii, Ichiro Terasaki, Hiori Kino, Yongcheng Jin, Takashi Hibino, Tetsuya Kobayashi, Eiji Nishibori, Hiroshi Sawa, Hideki Yoshikawa, Takeshi Terauchi and Satoshi Sumi. J. Mater. Chem. A, (2013), 1, 5089-5096

8. High-performance thermoelectric mineral Cu12-xNixSb4S13 tetrahedrite. Suekuni, K. Tsuruta, M. Kunii, H. Nishiate, E. Nishibori, S. Maki, M. Ohta, A. Yamamoto, and M. Koyano, Journal of Applied Physics 113, (2013) 043712.

9. A Structual Diagnostics Diagram for Mattalofullerenes Encapslating Metal Carbides and Nitrides. Sachiko Maki, Eiji Nishibori, Ikuya Terauchi, Masayuki Ishihara, Shinobu Aoyagi, Makoto Sakata, Masaki Takata, Hisashi Umemoto, Takashi Inoue, and Hisanori Shinohara. J. Am. Chem. Soc. 135, (2013) 918-923.

10. サーマルマネジメント 〜余熱・排熱の制御と有効利用〜 株式会社エヌ・ティー・エス、西堀英治、2編、第5節 放射光粉末X線回折による熱電変換材料の構造評価 pp190-199 (2013)

11. 物質科学における放射光粉末回折法の利活用 西堀英治, 真木祥千子 日本結晶学会誌, 55, 95-102(2013)

研究業績 2012

1. Molecular Ionics in Supramolecular Assemblies with Channel Structures Containing Lithium Ions. Makoto Moriya, Hiro Kitaguchi, Eiji Nishibori, Hiroshi Sawa, Wataru Sakamoto, and Toshinobu Yogo Chemistry - A European Journal.18 (2012) 15305-15309.

2. A novel phosphor for glareless white Light-emitting diodes. Hisayoshi Daicho, Takeshi Iwasaki, Kiminori Enomoto, Yasutaka Sasaki, Yuzo Maeno, Yu Shinomiya, Shinobu Aoyagi, Eiji Nishibori, Makoto Sakata, Hiroshi Sawa, Satoru Matsuishi, Hideo Hosono. Nature Communications. 3 (2012) 1132.

3. Orbital structures in spinel vanadates AV2O4 (A = Fe, Mn). Y. Nii, H. Sagayama, T. Arima, S. Aoyagi, R. Sakai, S. Maki, E. Nishibori, H. Sawa, K. Sugimoto, H. Ohsumi, and M. Takata. Phys. Rev. B 86, (2012) 125142

4. Solid-State Ligand-Driven Light-Induced Spin Change at Ambient Temperatures in Bis-(dipyrazolylstyrylpyridine) iron(II) Complexes. Kazuhiro Takahashi; Yuta Hasegawa; Ryota Sakamoto; Michihiro Nishikawa; Shoko Kume; Eiji Nishibori; Hiroshi Nishihara, Inorganic Chemistry. 51 (2012) 5188-5198.

5. Crystal structure and chemical bonding of the intermetallic Zintl phase Yb11AlSb9. Sofie Kastbjerg, Catherine A. Uvarov, Susan M. Kauzlarich, Yu-Sheng Chen, Eiji Nishibori, Mark A. Spackman and Bo Brummerstedt Iversen. Dalton Trans., 41, (2012), 10347-10353

6. A study of the α -> β transformation in the dimorphic clathrate Ba8Ga16Sn30. Baoli Dua, Yuta Saigaa, Kousuke Kajisaa, Toshiro Takabatakea, Eiji Nishibori, Hiroshi Sawa. Philospphical Magazine B. 92(2012) 2541-2552.

7. Spin-orbital quantum fluctuations on a honeycomb based lattice. S. Nakatsuji, K. Kuga, K. Kimura, R. Satake, N. Katayama, E. Nishibori, H. Sawa, R. Ishii, M. Hagiwara, F. Bridges, T. U. Ito, W. Higemoto, Y. Karaki, M. Halim, A. A. Nugroho, J. A. Rodriguez-Rivera, M. A. Green, C. Broholm. Science 336 (2012) 559-563.

8. Rock-salt of Thermally Contracted C60 with Mobile Lithium Cation inside. Shinobu Aoyagi, Yuki Sado, Eiji Nishibori, Hiroshi Sawa, Hiroshi Okada, Hiromi Tobita, Yasuhiko Kasama, Ryo Kitaura, and Hisanori Shinohara. Angewandte Chemie International Edition. 51, (2012). 3377-3381. Hot Paper

9. Iron-platinum-arsenide superconductors Ca10(PtnAs8)(Fe2-xPtxAs2)5. Minoru Nohara, Satomi Kakiya, Kazutaka Kudoa, Yoshihiro Oshiro, Shingo Araki, Tatsuo C. Kobayashi, Kenta Oku, Eiji Nishibori, Hiroshi Sawa. Solid State Communications. 152, (2012) 635-639.

10. Application of Atomic Hirshfeld Surface Analysis to Intermetallic Systems: Is Mn in Cubic CeMnNi4 a Thermoelectric Rattler atom? Mads R. V. Jorgensen, Iben Skovsen, Henrik F. Clausen, Jian-Li Mi, Mogens Christensen, Eiji Nishibori, Mark A. Spackman, and Bo B. Iversen. Inorg. Chem., 51, (2012), 1916-1924

11. 光に応答する電子を個別に観察!──“姉妹”光子が拓く超高空間分解能顕微鏡 玉作賢治・澤田 桂・西堀英治・石川哲也 化学 67, No2, 12-16 (2012)

研究業績 2011

1. Single-component Layered Molecular Conductor, [Au(ptdt)2] Biao Zhou, Hiroyuki Yajima, Yuki Idobata, Akiko Kobayashi, Tetsuya Kobayashi, Eiji Nishibori, Hiroshi Sawa, and Hayao Kobayashi, Chemistry Letters 41, (2012) 154-157.

2. Superconductivity at 38 K in the iron-based compound with platinum-arsenide layers Ca10(Pt4As8)(Fe2-xPtxAs2)5. Satomi Kakiya, Kazutaka Kudo, Yoshihiro Nishikubo, Kenta Oku, Eiji Nishibori, Hiroshi Sawa, Takahisa Yamamoto, Toshio Nozaka and Minoru Nohara. Journal of the Physical Society of Japan. 80, (2011) 093704. Editors’ Choice

3. Multi-temperature Synchrotron Powder X-ray Diffraction Study and Hirshfeld Surface Analysis of Chemical Bonding in the Thermoelectric Zintl Phase Yb14MnSb11. Sofie Kastbjerg, Catherine A. Uvarov, Susan M. Kauzlarich, Eiji Nishibori; Mark A. Spackman; Bo Brummerstedt Iversen. Chemistry of Materials. 23, (2011) 3723-3730.

4. Multitemperature crystal structures and physical properties of the partially filled thermoelectric skutterudites M0.1Co4Sb12 (M=La, Ce, Nd, Sm, Yb, and Eu). Jian- Li Mi, Mogens Christensen, Eiji Nishibori, and Bo Brummerstedt Iversen, Physical Review B84, (2011) 064114.

5. Visualizing the local optical response to extreme-ultraviolet radiation with a resolution of lambda/380. Kenji Tamasaku, Kei Sawada, Eiji Nishibori & Tetsuya Ishikawa. Nature Physics 7, (2011) 705-708.

6. High-Resolution Synchrotron Studies and Magnetic Properties of Frustrated Antiferromag nets MAl2S4 (M = Mn2+, Fe2+, Co2+). M. C. Menard, R. Ishii, T. Higo, E. Nishibori, H. Sawa, S. Nakatsuji, J. Y. Chan. Chemistry of Materials. 23, (2011) 3086-3094.

7. Three-Dimensional Nanostructure and Specific Surface Area Measurements of Porous Titania Photocatalysts by Electron Tomography and Their Relation to Photocatalytic Activity. Kenta Yoshida, Masaki Makihara, Nobuo Tanaka, Shinobu Aoyagi, Eiji Nishibori, Makoto Sakata, Edward D. Boyes, and Pratibha L. Gai. Microsc. Microanal. 17, (2011) 1-10.

8. Magnetic and transport properties of the spin-state disordered oxide La0.8Sr0.2Co1-xRhxO3-delta. Soichiro Shibasaki, Ichiro Terasaki, Eiji Nishibori, Hiroshi Sawa, Jenni Lybeck, Hisao Yamauchi, and Maarit Karppinen. Physical Review B83, (2011) 094405.

9. Growth of Nanocrystals in a Single Crystal of Different Materials: A Way of Giving Function to Molecular Crystals. Toshio Naito, Akihiro Kakizaki, Tamotsu Inabe, Riu Sakai, Eiji Nishibori, and Hiroshi Sawa. Crystal Growth & Design, 11, (2011) 501-506.

10. Crystallographic and superconducting properties of the fully gapped noncentrosymmetric 5d-electron superconductors CaMSi3 (M=Ir, Pt). G. Eguchi, D. C. Peets, M. Kriener, Y. Maeno, E. Nishibori, Y. Kumazawa, K. Banno, S. Maki, and H. Sawa. Physical Review B83, (2011) 024512.

11. Spin Density Distribution of YTiO3 Observed by X-Ray Magnetic Diffraction. Kosuke Suzuki, Masahisa Ito, Naruki Tsuji, Hiromichi Adachi, Hironori Nakao, Youichi Murakami, Yasujiro Taguchi, Yoshinori Tokura, Eiji Nishibori, Makoto Sakata. Key Engineering Materials, 459, (2011) 7-10.

12. 実空間法による構造決定 西堀英治 日本結晶学会誌 53, 240-248, (2011).

13. 単結晶電子密度解析によるC60フラーレンに内包されたリチウムイオンの観測 青柳忍、西堀英治、澤博 日本結晶学会誌53, 257-263, (2011).

14. 新しいAb-Initio粉末構造決定法の開発 坂田誠、西堀英治、澤博 日本結晶学会誌 53, 269-273, (2011).

15. 単結晶電子密度解析により解明されたリチウム内包C60フラーレンの分子構造 青柳忍、西堀英治、澤博 放射光.24, 73-80 (2011)

研究業績 2010

1. Multi-temperature synchrotron PXRD and physical properties study of half-Heusler TiCoSb. I. Skovsen, L. Bjerg, M. Christensen, E. Nishibori, B. Balke, C. Felser, B. B. Iversen. Dalton Transactions. 39, (2010) 10154-10159.

2. A layered ionic crystal of polar Li@C60 superatoms. S. Aoyagi, E. Nishibori, H. Sawa, K. Sugimoto, M. Takata, Y. Miyata, R. Kitaura, H. Shinohara, H. Okada, T. Sakai, Y. Ono, K. Kawachi, K. Yokoo, S. Ono, K. Omote, Y. Kasama, S. Ishikawa, T. Komuro, H. Tobita, Nature Chemistry, 2, (2010) 678-683.

3. Single-Component Molecular Conductor [Cu(tmdt)2] Containing an Antiferromagnetic Heisenberg Chain. B. A. Zhou, H. Yajima, A. Kobayashi, Y. Okano, H. Tanaka, T. Kumashiro, E. Nishibori, H. Sawa, H. Kobayashi, Inorganic Chemistry, 49, (2010) 6740-6747.

4. Multitemperature synchrotron powder diffraction and thermoelectric properties of the skutterudite La0.1Co4Sb12. J. L. Mi, M. Christensen, E. Nishibori E, V. Kuznetsov, D. M. Rowe, B. B. Iversen, Journal of Applied Physics, 107, (2010) 113507.

5. Multipole electron-density modelling of synchrotron powder diffraction data: the case of diamond. H. Svendsen, J. Overgaard, R. Busselez, B. Arnaud, P. Rabiller, A. Kurita, E. Nishibori, M. Sakata, M. Takata and B. B. Iversena. Acta Crystallographica A66, (2010) 458-469.

6. Superconducting properties of noncentrosymmetric CaIrSi3. G. Eguchi, D. C. Peets; M. Kriener, S. Maki, E. Nishibori, H. Sawa; Y. Maeno. Physica C, 470, (2010) S762-S763.

7. Thermal Stability of Thermoelectric Zn4Sb3. H. Yin, M. Christensen, B. L. Pedersen, E. Nishibori, S. Aoyagi, B. B. Iversen. Journal of Electronic Materials, 39, (2010) 1957-1959.

8. Extremely High Resolution Single Crystal Diffractometory for Orbital Resolution using High Energy Synchrotron Radiation at SPring-8. Kunihisa Sugimoto, Hiroyuki Ohsumi, Shinobu Aoyagi, Eiji Nishibori, Chikako Moriyoshi, Yoshihiro Kuroiwa, Hiroshi Sawa, and Masaki Takata. AIP Conf. Proc. 1234, (2010) 887-891.

9. Resistivity measurements on TMTTeN and [Ni(ptdt)2] above 20 GPa and electrical and structural studies on [Au(tmdt)2]. H. Kobayashi, B. Zhou, A. Kobayashi, Y. Okano, E. Nishibori, M. Sakata, H. Cui, J. Brooks. Physica B. 405, (2010) S303-S307.

10. Experimental charge density study of (DBr-DCNQI)2 Cu for metallic phase by synchrotron X-ray diffraction. S. Maki, E. Nishibori, H. Okabayashi, R. Sato, S. Aoyagi, H. Sawa, R. Kato. Physica B. 405, (2010) S321-S323.

11. Observation of a Li cation encapsulated in a C60 fullerene cage by single-crystal charge density analysis. S. Aoyagi , E. Nishibori and H. Sawa. SPring-8 Research Frontiers, (2010) 92-93.

12. マキシムエントロピー法のタンパク質構造解析への応用 西堀英治 日本結晶学会誌52, 62-67 (2010)

研究業績 2009

1. Structural Anomalies Associated with Antiferromagnetic Transition of Single-Component Molecular Metal [Au(tmdt)2]. Biao Zhou, Akiko Kobayashi, Yoshinori Okano, HengBo Cui, David Graf, James S. Brooks, Takeshi Nakashima, Shinobu Aoyagi, Eiji Nishibori, Makoto Sakata and Hayao Kobayashi. Inorganic Chemistry, 48, (2009) 10151-10157.

2. Counterion-Dependent Valence Tautomerization of Ferrocenyl-Conjugated Pyrylium Salts. M. Kondo, M. Uchikawa, K. Namiki, W. W. Zhang, S. Kume, E. Nishibori, H. Suwa, S. Aoyagi, M. Sakata, M. Murata, Y. Kobayashi, H. Nishihara. Journal of the American Chemical Society, 131, (2009) 12112-12124.

3. Single-Component Molecular Conductor [Pt(tmdt)2] (tmdt = trimethylenetetrathiafulvalenedithiolate) - An Advanced Molecular Metal Exhibiting High Metallicity. B. Zhou, A. Kobayashi, Y. Okano, T. Nakashima, S. Aoyagi, E. Nishibori, M. Sakata, M. Tokumoto, H. Kobayashi. Advanced Materials, 21, (2009) 3596-3600.

4. High-Pressure (up to 10.7 GPa) Crystal Structure of Single-Component Molecular Metal [Au(tmdt)2]. Yoshinori Okano, Biao Zhou, Hishashi Tanaka, Takafumi Adachi, Yasuo Ohishi, Masaki Takata, Shinobu Aoyagi, Eiji Nishibori, Makoto Sakata, Akiko Kobayashi, Hayao Kobayashi. Journal of the American Chemical Society, 131, (2009) 7169-7174.

5. Structures and Physical Properties of Highly Conducting Single-Component Molecular Conductors Containing Se Atoms. Emiko Fujiwara, Biao Zhou, Akiko Kobayashi, Hayao Kobayashi, Yuichi Fujishiro, Eiji Nishibori, Makoto Sakata, Shoji Ishibashi, Kiyoyuki Terakura. European Journal of Inorganic Chemistry. 12, (2009) 1585-1591.

6. In situ observation of eutectoid reaction forming a PbTe-Sb2Te3 thermoelectric nanocomposite by synchrotron X-ray diffraction. Teruyuki Ikeda, Eric S. Toberer, Vilupanur A. Ravi, G. Jeffrey Snyder, Shinobu Aoyagi, Eiji Nishibori and Makoto Sakata. Scripta Materialia 60 (2009) 321-324

7. 放射光を用いた精密電子密度解析の現状と実際, 西堀英治, 澤 博 固体物理、44(2009) 751-766.

研究業績 2008

1. Charge density distribution of KMnF3 under high pressure. S. Aoyagi, S. Toda, E. Nishibori, Y. Kuroiwa, Y. Ohishi, M. Takata, and M. Sakata. Physical Review B78, (2008) 224102.

2. Ab-initio structure determination and refinements for a pharmaceutical, Prednisolone Succinate, by the combination of Genetic Algorithm and Maximum Entropy Method from Synchrotron powder data. Eiji Nishibori,Tadakatsu Ogura, Shinobu Aoyagi and Makoto Sakata. Journal of Applied Crystallography. 41, (2008) 292-301.

3. Application of maximum-entropy maps in the accurate refinement of a putative acylphosphatase using 1.3 A X-ray diffraction data. Eiji Nishibori, Takahiro Nakamura, Masanori Arimoto, Shinobu Aoyagi, Hideo Ago, Masashi Miyano, Toshikazu Ebisuzaki and Makoto Sakata. Acta Crystallographica. D 64, (2008)237-247. Cover Picture.

4. Conducting Dimerized Cobalt Complexes with Tetrathiafulvalene Dithiolate Ligands. Emiko Fujiwara, Kazumasa Hosoya, Akiko Kobayashi, Hisashi Tanaka, Madoka Tokumoto, Yoshinori Okano, Hideki Fujiwara, Hayao Kobayashi, Yuichi Fujishiro, Eiji Nishibori, Masaki Takata, and Makoto Sakata. Inorganic Chemistry 47, (2008) 863-874.

5. Accelerating X-ray structural analysis with Graphics Processing Unit. Taku Okaya, Sachiko Maki, Eiji Nishibori, Shinobu Aoyagi, Hiroshi Sawa. International Symposium on Frontiers of Computational Science (2008), in CD-ROM.

6. Structure Determination of Biological and Pharmaceutical Molecules with Many Degrees of Freedom by Maximum Entropy Method and Genetic Algorithm. Shinobu Aoyagi , Eiji Nishibori, Hiroshi Sawa, Makoto Sakata. International Symposium on Frontiers of Computational Science (2008), in CD-ROM.

7. 熱電変換技術ハンドブック、梶川武信 監修、株式会社エヌ・ティー・エス 西堀英治 2章、2節、2.亜鉛アンチモン化合物、2.1 結晶構造. pp46-52.(2008)

8. 高分解能粉末X線回折データを用いた電子密度分布解析 西堀英治、栗田明宏、青蜚E、澤博 KEK Proceedings 2008-13, (2008) 24-25.

9 Ab Initio Structure Determination of Medium-Sized Pharmaceuticals. E. Nishibori, S. Aoyagi and M. Sakata. SPring-8 Research Frontiers, (2008) 116-110.

10. 大規模計算を用いたX線構造解析 −マキシマムエントロピー法によるタンパク質の精密X線構造解析−、中村高洋、青蜚E、西堀英治、坂田誠、名古屋大学情報基盤センターニュース.7 , 3-10.(2008)

11. 大強度パルス中性子利用による粉末回折法の未来について 坂田 誠,西堀 英治,青柳 忍,原 陽平,大野 敦子, 日本結晶学会誌 50 (2008) 91-97.

研究業績 2007

1. Hg0.04Zn3.96Sb3: Synthesis, Crystal Structure, Phase Transition, and Thermoelectric Properties. B. L. Pedersen; H. Birkedal, E. Nishibori; A. Bentien, M. Sakata, M. Nygren, P. T. Frederiksen, B. B. Iversen. Chemistry of Materials 19 (2007) 6304-6311.

2. 1:1 Cross-Assembly of Two β-Diketonate Complexes via Arene-Perfluoroarene Interaction. Akiko Hori, Ayaka Shinohe, Mikio Yamasaki, Shinobu Aoyagi, Eiji Nishibori, Makoto Sakata. Angewandte Chemie International Edition. 46 (2007) 7617-7620.

3. X-ray charge density study of chemical bonding in skutterudite CoSb3. A. Ohno, S. Sasaki, E. Nishibori, S. Aoyagi, M. Sakata, B. B. Iversen. Physical Review B76. (2007) 064119.

4. Synthesis, enhanced stability and structural imaging of C60 and C70 double-wall carbon nanotube peapods. G. Ning , N. Kishi, H. Okimoto, M. Shiraishi, Y. Kato, R. Kitaura, T. Sugai, S. Aoyagi, E. Nishibori, M. Sakata, H. Shinohara. Chemical Physics Letters 441 (2007) 94-99.

5. Magnetic Properties and Crystal Structure of Solvent-Free Sc@C82 Metallofullerene Microcrystals., Yasuhiro Ito, Wataru Fujita, Toshiya Okazaki, Toshiki Sugai, Kunio Awaga, Eiji Nishibori, Masaki Takata, Makoto Sakata, and Hisanori Shinohara., ChemPhysChem, 8 (2007), 1019-1024.

6. Accurate structure factors and experimental charge densities from synchrotron X-ray powder diffraction data at SPring-8. E. Nishibori, E. Sunaoshi, A. Yoshida, S. Aoyagi, K. Kato, M. Takata, M. Sakata. Acta Crystallographica, A63 (2007) 43-52

7. A 281 Tflops Calculation for X-ray Protein Structure Analysis with Special-Purpose Computers MDGRAPE-3. Yousuke Ohno, Eiji Nishibori, Tetsu Narumi, Takahiro Koishi, Tahir H. Tahirov, Hideo Ago, Masashi Miyano, Ryutaro Himeno, Toshikazu Ebisuzaki, Makoto Sakata and Makoto Taiji, Proc. SC07: the International Conference for High Performance Computing, Networking, Storage and Analysis (2007), in USB Memory. Gordon Bell Prize Finalist選出論文

8. Advanced Structural Analyses by Third Generation Synchrotron Radiation Powder Diffraction. M. Sakata, S. Aoyagi, T. Ogura, and E. Nishibori, AIP Conf. Proc. 879, (2007) 1829-1832.

9. Accurate Structure factors from synchrotron powder diffraction data at SPring-8. E. Nishibori, S. Aoyagi, M. Sakata, SPring-8 Research Frontiers, (2007) 52-53.

研究業績 2006

1. Bent (metal)2C2 clusters encapsulated in (Sc2C2)@C82(III) and (Y2C2)@C82(III) metallofullerenes. Eiji Nishibori, Masayuki Ishihara, Masaki Takata, Makoto Sakata, Yasuhiro Ito, Takashi Inoue and Hisanori Shinohara, Chemical Physics Letters 433 (2006) 120-124.

2. High Resolution Analysis of (Sc3C2)@C80 Metallofullerene by Third Generation SR X-ray Powder Diffraction. Eiji Nishibori, Ikuya Terauchi, Makoto Sakata, Masaki Takata, Yasuhiro Ito, Toshiki Sugai and Hisanori Shinohara., J. Phys. Chem. B., 110 (2006) 19215-19219.

3. Single-wall carbon nanotubes encaging linear chain C10H2 polyyne molecules inside. D. Nishide, H. Dohi, T. Wakabayashi, E. Nishibori, S. Aoyagi, M. Ishida, S. Kikuchi, R. Kitaura, T. Sugai, M. Sakata, H. Shinohara. Chemical Physics Letters 428 (2006) 356-360.

4. Guest-induced instant and reversible crystal-to-crystal transformation of 1,4-bis(ferrocenylethynyl)anthraquinone. M. Kondo, M. Murata, H. Nishihara, E. Nishibori, S. Aoyagi, M. Yoshida, Y. Kinoshita, M. Sakata. Angewandte Chemie International Edition 45 (2006) 5461-5464.

5. Magnetic transitions of single-component molecular metal [Au(tmdt)2] and its alloy systems. B. Zhou, M. Shimamura, E. Fujiwara, A. Kobayashi, T. Higashi, E. Nishibori, M. Sakata, H. B. Cui, K. Takahashi, H. Kobayashi. Journal of the American Chemical Society 128 (2006) 3872-3873.

6. Relationship between superconductivity and crystal structure in NbB2+x. H. Takagiwa, E. Nishibori, N. Okada, M. Takata, M. Sakata, J. Akimitsu, Science and Technology of Advanced Materials, 7 (2006) 22-25

7. A C2 molecule entrapped into pentagonal-dodecahedral Y2-cage in (Y2C2)@C82(III) metallofullerenes. E. Nishibori, S. Narioka, M. Takata, M. Sakata, T. Inoue, H. Shinohara. ChemPhysChem,7(2006) 345-348.

8. 放射光粉末X線回折法による精密結晶構造解析法の開発と展開, 西堀英治, 日本結晶学会誌48(2006) 216-223.

9. 粉末回折による分子性結晶の構造研究, 西堀英治、小勝匡勝、青蜚E、坂田誠, 豊田研究報告59(2006)155-160.

10. Structure Determination of Single-component Molecular Metals by X-ray Powder Diffraction. A. Kobayashi, E. Fujiwara and E. Nishibori, SPring-8 Research Frontiers, (2006) 82-83

11. Guest-Induced Instant and Reversible Crystal-to-Crystal Transformation of 1,4-bis(ferrocenyl- . ethynyl)anthraquinone. Mio Kondo, Hiroshi Nishihara and Eiji Nishibori. SPring-8 Research Frontiers, (2006), 92-93.

研究業績 2005

1. Conducting and magnetic properties of 1-ethyl-3-methylimidazolium (EMI) salts containing paramagnetic irons: Liquids [EMI](MCl4)-Cl-III] (M = Fe and Fe0.5Ga0.5) and solid [EMI]2[(FeCl4)-Cl-II]. Y. Yoshida, A. Otsuka, G. Saito, S. Natsume, E. Nishibori, M. Takata, M. Sakata, M. Takahashi, T. Yoko. Bulletin of the Chemical Society of Japan. 78 (2005) 1921-1928. BCSJ Award Article.

2. A study of structures and order parameters in antiferroelectric PbHfO3 by synchrotron radiation. H. Fujishita, Y. Ishikawa, A. Ogawaguchi, K. Kato, E. Nishibori, M. Takata, M. Sakata. Journal of the Physical Society of Japan. 74 (2005) 2743-2747.

3. Low-spin state structure of [Fe(chloroethyltetrazole)6] (BF4)2 obtained from synchrotron powder diffraction data. E. Dova, R. Peschar, M. Takata, E. Nishibori, H. Schenk, A. F. Stassen, J. G. Haasnoot. Chemistry-A European Journal. 11 (2005) 5855-5865.

4. MEM charge density analysis of orbital-ordering of Nd0.35Sr0.65MnO3. K. Kato, M. Takata, E. Nishibori, M. Sakata, N. Hamada, Y. Moritomo. Journal of the Physical Society of Japan. 74 (2005) 2137-2140.

5. Single-component molecular conductor [Zn(tmdt)2] and related Zn complexes. K. Yamamoto, E. Fujiwara, A. Kobayashi, Y. Fujishiro, E. Nishibori, M. Sakata, M. Takata, H. Tanaka, Y. Okano, H. Kobayashi. Chemistry Letters.34 (2005) 1090-1091.

6. Phase relationships of crystalline polymorphs of mesogenic 4-cyano-4 '-heptyloxybiphenyl (70CB) and 4-cyano-4 '-octyloxybiphenyl (80CB). K. Hori, Y. Iwai, M. Yano, R. Orihara-Furukawa, Y. Tominaga, E. Nishibori, M. Takata, M. Sakata, K. Kato. Bulletin of the Chemical Society of Japan. 78 (2005) 1223-1229.

7. Pressure/temperature/substitution-induced melting of A-site charge disproportionation in Bi1-xLaxNiO3 (0 < x < 0.5). S. Ishiwata, M. Azuma, M. Hanawa, Y. Moritomo, Y. Ohishi, K. Kato, M. Takata, E. Nishibori, M. Sakata, I. Terasaki, M. Takano. Physical Review B72 (2005) 045104.

8. Crystal structures, atomic vibration, and disorder of the type-I thermoelectric clathrates Ba8Ga16Si30, Ba8Ga16Ge30, Ba8In16Ge30, and Sr8Ga16Ge30. A. Bentien, E. Nishibori, S. Paschen, B. B. Iversen, Physical Review B71(2005) 144107.

9. An Anomalous Endohedral Structure of Eu@C82 Metallofullerenes., B. Y. Sun, T. Sugai, E. Nishibori, K. Iwata, M. Sakata, M. Takata, and H. Shinohara. Angewandte Chemie-International Edition 44 (2005) 4568-4571.

10. Evidence of a pressure-induced orbital transition in a layered manganite., K. Kato, Y. Ohishi, M. Takata, E. Nishibori, M. Sakata, Y. Moritomo, Physical Review B71 (2005) 012404

11. High-energy SR powder diffraction evidence of multisite disorder of Pb atom in cubic phase of PbZr1-xTixO3. Y. Kuroiwa, Y. Terado, S. J. Kim, A. Sawada A, Y. Yamamura, S. Aoyagi, E. Nishibori, M. Sakata, M. Takata, Japanese Journal of Applied Physics Part 1-Regular Papers Brief Communications & Review Papers. 44 (2005) 7151-7155.

12. Pressure-induced charge ordering of LiV2O4. K. Takeda, H. Hidaka, H. Kotegawa, T. C. Kobayashi, K. Shimizu, H. Harima, K. Fujiwara, K. Miyoshi, J. Takeuchi, Y. Ohishi, T. Adachi, M. Takata, E. Nishibori, M. Sakata, T. Watanuki, O. Shimomura. Physica B-condensed Matter. 359 (2005) 1312-1314.

13. マキシマムエントロピー法による高性能熱電変換材料β-Zn4Sb3の構造, 西堀英治、G. Jeffrey Snyder、 Bo Brummerstedt Iversen, 日本結晶学会誌47(2005) 204-210.

14. イットリウム2金属内包フラーレンにおける、2金属2炭素内包構造, 西堀英治、成岡晋太郎、坂田誠、高田昌樹、井上崇、篠原久典, 豊田研究報告 58 (2005)167-172.

15. BL02B2に設置された大型デバイ-シェラーカメラついて, SPring-8利用者情報誌10(2005)191-193, 坂田誠、西堀英治、青柳忍、黒岩芳弘、久保田佳基、高田昌樹、加藤健一

16. Disordered Zinc in Thermoelectric Material Zn4Sb3 with Phonon-glass and Electron-crystal Properties. E. Nishibori, G. J. Snyder, P. Rabiller, M. Christensen and B. B. Iversen., SPring-8 Research Frontiers, (2005) 44-45

研究業績 2004

1. Structural study of Fe doped and Ni substituted thermoelectric skutterudites by combined synchrotron and neutron powder diffraction and ab initio theory. M. Christensen, B. B. Iversen, L. Bertini, C. Gatti, M. Toprak, M. Muhammed, E. Nishibori. Journal of Applied Physics 96(2004) 3148-3157

2. Interstitial Zn atoms do the trick in thermoelectric zinc antimonide, Zn4Sb3: A combined maximum entropy method X-ray electron density and ab initio electronic structure study. F. Cargnoni, E. Nishibori, P. Rabiller, L. Bertini, G. J. Snyder, M. Christensen, C. Gatti, B. B. Iversen. Chemistry-A European Journal 10(2004)3862-3870.

3. Transport and magnetic studies on the spin state transition of Pr1-xCaxCoO3 up to high pressure. T. Fujita, T. Miyashita, Y. Yasui, Y. Kobayashi, M. Sato, E. Nishibori, M. Sakata, Y. Shimojo, N. Igawa, Y. Ishii, K. Kakurai, T. Adachi, Y. Ohishi, M. Takata. Journal of the Physical Society of Japan 73(2004) 1987-1997

4. Disordered zinc in Zn4Sb3 with phonon-glass and electron-crystal thermoelectric properties. G. J. Snyder, M. Christensen, E. Nishibori, T. Caillat, B. B. Iversen. Nature Materials 3(2004) 458-463

5. Anomalous endohedral structure of Gd@C82 metallofullerenes. E. Nishibori, K. Iwata, M. Sakata, M. Takata, H. Tanaka, H. Kato, H. Shinohara, Physical Review B69(2004)113412

88. Structure analysis of Zn-Mg-Ho icosahedral quasicrystal by modified Rietveld method using ellipsoid and sphere windows. T. Ishimasa, K. Oyamada, Y. Arichika, E. Nishibori, M. Takata, M. Sakata, K. Kato, Journal of Non-Crystalline Solids 334(2004) 167-172

6. Quantum chemical study on the configurations of encapsulated metal ions and the molecular vibration modes in endohedral dimetallofullerene La2@C80. H. Shimotani, T. Ito, Y. Iwasa, A. Taninaka, H. Shinohara, E. Nishibori, M. Takata, M. Sakata, Journal of the American Chemical Society. 126(2004) 364-369

7. Stability of magnesite and its high-pressure form in the lowermost mantle. M. Isshiki, T. Irifune, K. Hirose, S. Ono, Y. Ohishi, T. Watanuki, E. Nishibori, M. Takata, M. Sakata, Nature 427 (2004) 60-63.

8. Studies of capacity losses in cycles and storages for a Li1.1Mn1.9O4 positive electrode. M. Saitoh, M. Sano, M. Fujita, M. Sakata, M. Takata, E. Nishibori, Journal of the Electrochemical Society 151(2004)A17-A22

9. Charge density study under high pressure., M. Sakata, T. Itsubo, E. Nishibori, Y. Moritomo, N. Kojima, Y. Ohishi, M. Takata, Journal of Physics and Chemistry of Solids 65 (2004) 1973-1976.

10. Distinctive charge density distributions of perovskite-type antiferroelectric oxides PbZrO3 and PbHfO3 in cubic phase., Y. Kuroiwa, H. Fujiwara, A. Sawada, S. Aoyagi, E. Nishibori, M. Sakata, M. Takata, H. Kawaji, T. Atake., Japanese Journal of Applied Physics Part 1-Regular Papers short notes & Review Papers 43 (2004) 6799-6802. 第22回強誘電体応用会議 池田賞論文賞受賞論文

11. Crystal structure and dielectric and magnetic properties of BiCrO3 as a ferroelectromagnet., S. Niitaka, M. Azuma, M. Takano, E. Nishibori, M. Takata, M. Sakata, Solid State Ionics 172 (2004) 557-559.

12. Recent progress in development of single-component molecular metals., A. Kobayashi, E. Fujiwara, W. Suzuki, M. Sasa, Y. Fujishiro, E. Nishibori, M. Takata, M. Sakata, Y. Okano, H. Fujiwara, H. Kobayashi. Journal De Physique IV 114(2004) 419-424.

13. Temperature dependence of structures and order parameters in antiferroelectric PbHfO3., H. Fujishita, Y. Ishikawa, A. Ogawaguchi, K. Kato, E. Nishibori, M. Takata, M. Sakata. Ferroelectrics 301(2004)139-143.

14. Charge density level structures of endohedral metallofullerenes by the MEM/Rietveld method. Masaki Takata, Eiji Nishibori, Makoto Sakata, Hisanori Shinohara., FULLERENE-BASED MATERIALS: STRUCTURES AND PROPERTIES STRUCTURE AND BONDING 109(2004) 59-84.

15. マキシマムエントロピー法による電子密度分布, 坂田誠、西堀英治、高田昌樹, 熱測定31 29-36. (2004)

16. 高効率熱電変換材料Zn4Sb3の放射光粉末法による精密構造解析, SPring-8利用者情報誌9 421-427(2004) 西堀英治

研究業績 2003

1. Hole-doping and pressure effects on the metal-insulator transition in single crystals of Y1-xCaxTiO3 (0.37 < x < 0.41). M. Tsubota, F. Iga, T. Nakano, K. Uchihira, S. Kura, M. Takemura, Y. Bando, K. Umeo, T. Takabatake, E. Nishibori, M. Takata, M. Sakata, K. Kato, Y. Ohishi. Journal of the Physical Society of Japan 72 (2003) 3182-3188.

2. Structures of a single-component palladium complex with extended TTF-type dithiolate ligands, bis(tetrathiafulvalenedithiolato)palladium determined by powder X-ray diffraction. W. Suzuki, E. Fujiwara, A. Kobayashi, Y. Fujishiro, E. Nishibori, M. Takata, M. Sakata, Y. Okano, H. Kobayashi, Chemistry Letters 32 (2003) 1106-1107.

3. Pressure- and photoinduced transformation into a metastable phase in RbMn[Fe(CN)6]. Y. Moritomo, M. Hanawa, Y. Ohishi, K. Kato, M. Takata, A. Kuriki, E. Nishibori, M. Sakata, S. Ohkoshi, H. Tokoro, Physical Review B 68(2003) 144106.

4. Covalent bonds and their crucial effects on pseudogap formation in alpha-Al(Mn,Re)Si icosahedral quasicrystalline approximant. K. Kirihara, T. Nagata, K. Kimura, K. Kato, M. Takata, E. Nishibori, M. Sakata, Physical Review B 68(2003) 014205.

5. Sc2 dimer in IPR-violated C66 fullerene: a covalent bonded metallofullerene. M. Takata, E. Nishibori, M. Sakata, C-R. Wang, H. Shinohara, Chemical Physics Letters 372 (2003) 512-518

6. Pressure-induced structural phase transition in fullerides doped with rare-earth metals. D. H. Chi, Y. Iwasa, K. Uehara, T. Takenobu, T. Ito, T. Mitani, E. Nishibori, M. Takata, M. Sakata, Y. Ohishi, K. Kato, Y. Kubozono. Physical Review B67 (2003) 094101

7. Charge ordering and spin frustration in AlV2-xCrxO4. K. Matsuno, T. Katsufuji, S. Mori, M. Nohara, A. Machida, Y. Moritomo, K. Kato, E. Nishibori, M. Takata, M. Sakata, K. Kitazawa, H. Takagi. Physical Review Letters 90 (2003) 096404

8. Highly conducting crystals based on single-component gold complexes with extended-TTF dithiolate ligands. W. Suzuki, E. Fujiwara, A. Kobayashi, Y. Fujishiro, E. Nishibori, M. Takata, M. Sakata, H. Fujiwara, H. Kobayashi, Journal of the American Chemical Society 125 (2003) 1486-1487.

9. High-pressure structural analysis of Mn3O4. Y. Moritomo, Y. Ohishi, A. Kuriki, E. Nishibori, M. Takata, M. Sakata, Journal of the Physical Society of Japan 72 (2003) 765-766.

10. C70 molecular stumbling inside single-walled carbon nanotubes. Y. Maniwa, H. Kataura, M. Abe, A. Fujiwara, R. Fujiwara, H. Kira, H. Tou, S. Suzuki, Y. Achiba, E. Nishibori, M. Takata, M. Sakata, H. Suematsu. Journal of the Physical Society of Japan 72 (2003) 45-48.

11. Synchrotron radiation for structural chemistry - Endohedral natures of metallofullerenes found by synchrotron radiation powder method., M. Takata, E. Nishibori, M. Sakata, H. Shinohara, STRUCTURAL CHEMISTRY 14 (2003) 23-38

12. Atomic replacement effect on electron charge density of perovskite oxides. Y. Kuroiwa, S. Aoyagi, A. Sawada, E. Nishibori, M. Takata, M. Sakata, H. Tanaka. Journal of the Korean Physical Society 42 (2003)

13. Suppression of A site charge disproportionation in Bi1-xLaxNiO3. S. Ishiwata, M. Azuma, M. Takano, E. Nishibori, M. Takata, M. Sakata, Phisica B-Condensed Matter 329(2003) 813-814.

14. Monoclinic distortion in the insulating phase of PrNiO3. T. Saito, M. Azuma, E. Nishibori, M. Takata, M. Sakata, N. Nakayama, T. Arima, T. Kimura, C. Urano, M. Takano. Phisica B-Condensed Matter 329(2003) 866-867.

15. Charge density measurement in MgH2 by synchrotron X-ray diffraction. T. Noritake, S. Towata, M. Aoki, Y. Seno, Y. Hirose, E. Nishibori, M. Takata, M. Sakata. Journal of Alloys and Compounds 356(2003), 84-86.

16. Development of single-component molecular metals based on extended-TTF dithiolate ligands., A. Kobayashi, W. Suzuki, E. Fujiwara, H. Tanaka, Y. Fujishiro, E. Nishibori, M. Takata, M. Sakata, Y. Okanao, H. Kobayashi, Synthetic Metals 135 (2003) 511-513

研究業績 2002

1. High-pressure structural analysis of Fe3O4. A. Kuriki, Y. Moritomo, Y. Ohishi, K. Kato, E. Nishibori, M. Takata, M. Sakata, N. Hamada, S. Todo, N. Mori, O. Shimomura, A. Nakamura. Journal of the Physical Society of Japan 71 (2002) 3092-3093.

2. Studies of the pressure dependence of the charge density distribution in cerium phosphide by the maximum-entropy method. N. Ishimatsu, Y. Ohishi, M. Takata, E. Nishibori, M. Sakata, J. Hayashi, I. Shirotani, O. Shimomura. Journal of Physics-Condensed Matter 14 (2002) 11143-11146.

3. High pressure synthesis, crystal structure and physical properties of a new Ni(II) perovskite BiNiO3. S. Ishiwata, M. Azuma, M. Takano, E. Nishibori, M. Takata, M. Sakata, K. Kato, Journal of Materials Chemistry 12 (2002) 3733-3737.

4. Cycle performance in each state-of-charge in LiMn2O4. H. Yamane, M. Saitoh, M. Sano, M. Fujita, M. Sakata, M. Takada, E. Nishibori, N. Tanaka. Journal of the Electrochemical Society 149 (2002) A1514-A1520

5. Crystal structure and magnetic properties of hexagonal RMnO3 (R=Y, Lu, and Sc) and the effect of doping. T. Katsufuji, M. Masaki, A. Machida, Y. Moritomo, K. Kato, E. Nishibori, M. Takata, M. Sakata, K. Ohoyama, K. Kitazawa, H. Takagi., Physical Review B66 (2002)134434.

6. Orbital hybridization and covalency in paraelectric and ferroelectric SrBi2Nb2O9. Y. Shimakawa, H. Imai, H. Kimura, S. Kimura, Y. Kubo, E. Nishibori, M. Takata, M. Sakata, K. Kato, Z. Hiroi. Physical Review B66 (2002) 144110

7. Charge density level structures of endohedral metallofullerenes determined by synchrotron radiation powder method. M. Takata, E. Nishibori, M. Sakata, H. Shinohara, New Diamond and Frontier Carbon TECHNOLOGY 12 (2002) 271-286.

8. Direct observation of covalency between O and disordered Pb in cubic PbZrO3. S. Aoyagi, Y. Kuroiwa, A. Sawada, H. Tanaka, J. Harada, E. Nishibori, M. Takata, M. Sakata. Journal of the Physical Society of Japan 71 (2002) 2353-2356.

9. Anomalous spin density distribution in CeB6. M. Saitoh, N. Okada, E. Nishibori, H. Takagiwa, T. Yokoo, M. Nishi, K. Kakurai, S. Kunii, M. Takata, M. Sakata, J. Akimitsu., Journal of the Physical Society of Japan 71 (2002) 2369-2372.

10. The metal-insulator transition in Y1-xCaxTiO3 caused by phase separation. K. Kato, E. Nishibori, M. Takata, M. Sakata, T. Nakano, K. Uchihira, M. Tsubota, F. Iga, T. Takabatake., Journal of the Physical Society of Japan 71 (2002) 2082-2085.

11. Chemical bonding of hydrogen in MgH2. T. Noritake, M. Aoki, S. Towata, Y. Seno, Y. Hirose, E. Nishibori, M. Takata, M. Sakata, Applied Physics Letters 81 (2002) 2008-2010.

12. Bridging fullerenes with metals., D. H. Chi, Y. Iwasa, X. H. Chen, T. Takenobu, T. Ito, T. Mitani, E. Nishibori, M. Takata, M. Sakata, Y. Kubozono., Chemical Physics Letters 359 (2002) 177-183.

13. Low-temperature structure of [Fe(ptz)6](BF4)2 - Determination by synchrotron-radiation X-ray powder study. Y. Moritomo, K. Kato, A. Nakamoto, N. Kojima, E. Nishibori, M. Takata, M. Sakata, Journal of the Physical Society of Japan 71 (2002) 1015-1018.

14. ENIGMA: maximum-entropy method program package for huge systems. H. Tanaka, M. Takata, E. Nishibori, K. Kato, T. Iishi, M. Sakata, Journal of Applied Crystallography 35 (2002) 282-286.

15. High-pressure structural analysis of (Nd,Sm)1/2Sr1/2MnO3: Origin for pressure-induced charge ordering. A. Kuriki, Y. Moritomo, A. Machida, E. Nishibori, M. Takata, M. Sakata, Y. Ohishi, O. Shimomura, A. Nakamura., Physical Review B65 (2002) 113105.

16. Microscopic charge separation in Tb1-xCaxMnO3 (x similar to 1). A. Machida, Y. Moritomo, S. Mori, N. Yamamoto, K. Ohoyama, E. Nishibori, M. Takata, M. Sakata, T. Otomo, A. Nakamura., Journal of the Physical Society of Japan 71 (2002) 27-30.

17. Accurate charge-densities of crystalline materials obtained by third generation SR and MEM/Rietveld analysis. Y. Kuroiwa, S. Aoyagi, A. Sawada, E. Nishibori, M. Takata, M. Sakata, H. Tanaka, J. Harada. Ferroelectrics 268 (2002)443-448.

18. Precise charge density analysis of PbTiO3. S. Aoyagi, Y. Kuroiwa, A. Sawada, E. Nishibori, M. Takata, M. Sakata, H. Tanaka, J. Harada. Ferroelectrics 269, (2002)

19. High Resolution Debye-Scherrer Camera Installed at SPring-8. M. Takata, E. Nishibori, K. Kato, Y. Kubota, Y. Kuroiwa, and M. Sakata, Advances in X-ray Analysis 45, (2002) 377-384.

20. An experimental probe of bonding nature in rare earth metal doped fullerenes. Dam Hieu Chi, Y. Iwasa, T. Mitani, M. Takata, E. Nishibori, and M. Sakata., AIP Conf. Proc. 633, (2002) 51-54.

21. MEM/Rietveld法によって見る電子密度分布, 高田昌樹、西堀英治、加藤健一、坂田誠, 固体物理、37, 663-672. (2002)

22. ボロン化合物の物性の新しい展開, 秋光純、村中隆弘、西堀英治、高田昌樹、坂田誠, 固体物理、37, 585-593. (2002)

23. Bonding Nature in a Novel Superconductor, MgB2. Eiji Nishibori, Masaki Takata and Makoto Sakata., SPring-8 Research Frontiers, 30-33. (2002)

研究業績 2001

1. Thermal expansion of single-walled carbon nanotube (SWNT) bundles: X-ray diffraction studies. Y. Maniwa, R. Fujiwara, H. Kira, H. Tou, H. Kataura, S. Suzuki, Y. Achiba, E. Nishibori, M. Takata, M. Sakata, A. Fujiwara, H. Suematsu., Physical Review B64 (2001) 241402

2. Structural change at metal-insulator transition of Tb2Ba2Co4O11. H. Kusuya, A. Machida, Y. Moritomo, K. Kato, E. Nishibori, M. Takata, M. Sakata, A. Nakamura., Journal of the Physical Society of Japan 70 (2001) 3577-3580.

3. Enhanced specific heat jump in electron-doped CaMnO3: Spin ordering driven by charge separation. Y. Moritomo, A. Machida, E. Nishibori, M. Takata, M. Sakata., Physical Review B64 (2001) 214409.

4. Evidence for Pb-O covalency in tetragonal PbTiO3. Y. Kuroiwa, S. Aoyagi, A. Sawada, J. Harada, E. Nishibori, M. Takata, M. Sakata, Physical Review Letters 87 (2001) 217601.

5. Fe-site substitution effects on conductive ferromagnet Sr2FeMoO6. Y. Moritomo, Kusuya H, A. Machida, E. Nishibori, M. Takata, M. Sakata, A. Nakamura., Journal of the Physical Society of Japan 70 (2001) 3182-3183.

6. Effects of B-site disorder in Sr2FeMoO6 with double perovskite structure. Y. Moritomo, N. Shimamoto, S. Xu, A. Machida, E. Nishibori, M. Takata, M. Sakata, A. Nakamura., Japanese Journal of Applied Physics PART 2-LETTERS 40 (2001) L672-L674.

7. Bonding nature in MgB2. E. Nishibori, M. Takata, M. Sakata, H. Tanaka, T. Muranaka, J. Akimitsu., Journal of the Physical Society of Japan 70 (2001) 2252-2254.

8. Pentagonal-dodecahedral La-2 charge density in [80-Ih]fullerene: La2@C80. E. Nishibori, M. Takata, M. Sakata, A. Taninaka, H. Shinohara, Angewandte Chemie-International Edition 40 (2001) 2998-2999.

9. Structural properties and thermodynamic stability of Ba-doped silicon type-I clathrates synthesized under high pressure. A. Kitano, K. Moriguchi, M. Yonemura, S. Munetoh, A. Shintani, H. Fukuoka, S. Yamanaka, E. Nishibori, M. Takata, M. Sakata, Physical Review B64 (2001) 045206.

10. Compressibility of the MgB2 superconductor. K. Prassides, Y. Iwasa, T. Ito, C. H. Chi, K. Uehara, E. Nishibori, M. Takata, M. Sakata, Y. Ohishi, O. Shimomura, T. Muranaka, J. Akimitsu., Physical Review B64 (2001) 012509.

11. Charge ordering in the geometrically frustrated spinel AlV2O4. K. Matsuno, T. Katsufuji, S. Mori, Y. Moritomo, A. Machida, E. Nishibori, M. Takata, M. Sakata, N. Yamamoto, H. Takagi, Journal of the Physical Society of Japan 70 (2001) 1456-1459.

12. Charge density studies utilizing powder diffraction and MEM. Exploring of high Tc superconductors, C60 superconductors and manganites.  Masaki Takata, Eiji Nishibori, Makoto Sakata., Zeitschrift fur Kristallographie 216(2001) 71-86.

13. Chemical pressure control of exchange interaction in Mo pyrochlore. Y. Moritomo, S. Xu, A. Machida, T. Katsufuji, E. Nishibori, M. Takata, M. Sakata, S. W. Cheong., Physical Review B63(2001) 144425.

14. A scandium carbide endohedral metallofullerene: (Sc2C2)@C84., C. R. Wang, T. Kai, T. Tomiyama, T. Yoshida, Y. Kobayashi, E. Nishibori, M. Takata, M. Sakata, H. Shinohara, Angewandte Chemie-International Edition 40(2001) 397-399. Cover Picture.

15. Structure of IPR-violated fullerene, Sc2@C66. E. Nishibori, M. Takata, M. Sakata, Chun-Ru Wang, M. Inakuma, and H. Shinohara., AIP Conf. Proc. 590, (2001) 461-464.

16. Dimer structure of Sm3C70. Hieu Chi Dam, X. H. Chen, T. Takenobu, T. Itou, Y. Iwasa, T. Mitani, E. Nishibori, M. Takata, and M. Sakata., AIP Conf. Proc. 590, (2001) 447-450.

17. The large Debye-Scherrer camera installed at SPring-8 BL02B2 for charge density studies., E. Nishibori, M. Takata, K. Kato, M. Sakata, Y. Kubota, S. Aoyagi, Y. Kuroiwa, M. Yamakata, N. Ikeda. Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment 467 (2001) 1045-1048.

18. Charge density study of C60 superconductors by MEM/Rietveld analysis., M. Takata, E. Nishibori, M. Shinmura, H. Tanaka, K. Tanigaki, M. Kosaka, M. Sakata. Materials Science and Engineering A-Struvtural Materials Properties Microstructure And Procesing 312 (2001) 66-71.

19. Charge density studies utilizing powder diffraction and MEM. Exploring of high Tc superconductors, C60 superconductors and manganites.  Masaki Takata, Eiji Nishibori, Makoto Sakata., Zeitschrift fur Kristallographie 216(2001) 71-86.

20. IPを用いた高エネルギー放射光粉末X線回折, 高田昌樹、西堀英治、加藤健一、久保田佳基、黒岩芳弘、坂田誠, 放射光 14 28-33 (2001)

21. 新しいフラーレン分子Sc2@C66の構造を決定,高田昌樹、西堀英治、坂田誠、篠原久典, SPring-8利用者情報誌6(2001)116-120

22. STRUCTURE OF IPR-VIOLATED FULLERENE, Sc2@C66. Masaki Takata, Eiji Nishibori and Makoto Sakata., SPring-8 Research Frontiers, (2001) 30-32

23. MEM/Rietveld法による精密構造物性の研究, 高田昌樹、西堀英治、坂田誠, まてりあ 40(2001) 267

研究業績 2000年以前

1. Electron doping effects in conducting Sr2FeMoO6. Y. Moritomo, S. Xu, T. Akimoto, A. Machida, N. Hamada, K. Ohoyama, E. Nishibori, M. Takata, M. Sakata, Physical Review B62(2000) 14224-14228.

2. Microdomain structure of Cr-doped manganites: Nd1/2Ca1/2(Mn,Cr)O3. A. Machida, Y. Moritomo, E. Nishibori, M. Takata, M. Sakata, K. Ohoyama, S. Mori, N. Yamamoto, A. Nakamura., Journal of the Physical Society of Japan 69 (2000) 3536-3539.

3. Giant motion of La atom inside C82 cage. E. Nishibori, M. Takata, M. Sakata, H. Tanaka, M. Hasegawa, H. Shinohara, Chemical Physics Letters 330, (2000) 497-502.

4. C66 fullerene encaging a scandium dimer. C. R. Wang, T. Kai, T. Tomiyama, T. Yoshida, Y. Kobayashi, E. Nishibori, M. Takata, M. Sakata, H. Shinohara, Nature 408(2000) 426-427.

5. Covalent bonds in AlMnSi icosahedral quasicrystalline approximant. K. Kirihara, T. Nakata, M. Takata, Y. Kubota, E. Nishibori, K. Kimura, M. Sakata, Physical Review Letters 85(2000) 3468-3471.

6. Phase separation and insulator-metal behavior of doped manganites. A. Machida, Y. Moritomo, E. Nishibori, M. Takata, M. Sakata, K. Ohoyama, S. Mori, N. Yamamoto, A. Nakamura., Physical Review B62(2000) 3883-3887.

7. Crystal and magnetic structure of conducting double perovskite Sr2FeMoO6. Y. Moritomo, S. Xu, A. Machida, T. Akimoto, E. Nishibori, M. Takata, M. Sakata, K. Ohoyama., Journal of the Physical Society of Japan 69(2000) 1723-1726.

8. Metal-insulator transition induced by a spin-state transition in TbBaCo2O5+delta (delta=0.5). Y. Moritomo, T. Akimoto, M. Takeo, A. Machida, E. Nishibori, M. Takata, M. Sakata, K. Ohoyama, A. Nakamura., Physical Review B61(2000) R13325-R13328.

9. Electronic structure of double-perovskite transition-metal oxides. Y. Moritomo, S. Xu, A. Machida, T. Akimoto, E. Nishibori, M. Takata, M. Sakata, Physical Review B61(2000) R7827-R7830.

10. Electron-density distribution of approximants of the icosahedral Al-based alloys by the maximum-entropy method and the Rietveld refinement., K. Kirihara, T. Nakata, M. Takata, Y. Kubota, E. Nishibori, K. Kimura, M. Sakata. Materials Science and Engineering A-Struvtural Materials Properties Microstructure And Procesing 294 (2000) 492-495.

11. 短波長放射光X線による電子密度分布, 坂田誠、高田昌樹、西堀英治, 固体物理35(2000) 101-107

12. MEM/Rietveld法による金属フラーレンの構造研究, 高田昌樹、西堀英治、坂田誠, 放射光13 (2000) 230-238

13. BL02B2における精密構造物性研究, 坂田誠、西堀英治、高田昌樹, SPring-8利用者情報誌5(2000)194-198

14. Triangle scandium cluster imprisoned in a fullerene cage. M. Takata, E. Nishibori, M. Sakata, M. Inakuma, E. Yamamoto, H. Shinohara, Physical Review Letters 83 (1999) 2214-2217.

15. Direct observation of orbital order in manganites by MEM charge-density study. M. Takata, E. Nishibori, K. Kato, M. Sakata, Y. Moritomo, Journal of The Physical Society of Japan 68 (1999) 2190-2193. 第6回日本物理学会論文賞受賞論文

16. Peculiar covalent bonds in alpha-rhombohedral boron. M. Fujimori, T. Nakata, T. Nakayama, E. Nishibori, K. Kimura, M. Takata, M. Sakata, Physical Review Letters 82 (1999) 4452-4455.

17. High-pressure neutron and X-ray studies on the Mott transition of BaCoS2. M. Kanada, H. Harashina, H. Sasaki, K. Kodama, M. Sato, K. Kakurai, M. Nishi, E. Nishibori, M. Sakata, M. Takata, T. Adachi. Journal of Physics and Chemistry of Solids 60 (1999) 1181-1183.

18. A synchrotron powder diffraction study of Na-LTA., K. Hasegawa, E. Nishibori, M. Takata, M. Sakata, N. Togashi,J. H. Yu, O. Terasaki. Japanese Journal of Applied Physics 38 (1999) 65-68.

19. The MEM charge density study of Rb2CsC60, K2RbC60, and Li2CsC60 by synchrotron radiation powder method., M. Takata, N. Machida, E. Nishibori, B. Umeda, M. Sakata, K. Tanigaki, M. Kosaka, I. Hirosawa, J. Mizuki, Japanese Journal of Applied Physics 38 (1999) 122-125.

20. Charge densities and chemical bonding of CaSi2., E. Nishibori, D. Saso, M. Takata, M. Sakata, M. Imai. Japanese Journal of Applied Physics 38 (1999) 504-507.

21. A Direct Observation of Electron Density Level Structural Change Through Phase Transition. Masaki Takata, Tomohiro Ikeda, Eiji Nishibori, Kenichi Kato, and Makoto Sakata, Proceedings of the International Conference on Solid-Solid Phase Transformations 1999 (JIMIC-3) 12, (1999) 685-688.

22. Nuclear density distribution in KH2PO4 determined by the combined software system REMEDY., S. Kumazawa, S. Yamamura, E. Nishibori, M. Takata, M. Sakata, F. Izumi, Y. Ishii. Journal of Physics and Chemistry of Solids 60 (1999) 1407-1409.

23. Determination of the cage structure of Sc@C82 by synchrotron powder diffraction. E. Nishibori, M. Takata, M. Sakata, M. Inakuma, H. Shinohara, Chemical Physics Letters 298 (1998) 79-84.

24. Structural studies of endohedral metallofullerenes by synchrotron radiation powder diffraction. E. Nishibori, M. Takata, M. Sakata, H. Shinohara, Journal of Synchrotron Radiation 5(1998) 977-979

25. Structure of endohedral dimetallofullerene Sc2@C84. M. Takata, E. Nishibori, Umeda, B., M. Sakata, Yamamoto, E., H. Shinohara. Physical Review Letters 78 (1997) 3330-3333.

26. The nuclear density of YBCO by the maximum entropy method using neutron powder data. M. Takata, E. Nishibori, T. Takayama, M. Sakata, K. Kodama, M. Sato, C. J. Howard, Physica C 263 (1996)176-179.

27. Confirmation by X-ray-diffraction of the Endohedral Nature of the Metallofullerene Y@C82. M. Takata, B. Umeda, E. Nishibori, M. Sakata, Y. Saito, M. Ohno, H. Shinohara., Nature 377 (1995) 46-49.

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筑波大学 Univ. Tsukuba

教授室  :自然系学系棟B207 Prof. Natl. Sci. B207

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助教・学生:自然系学系棟B305 AP.& St. Natl. Sci. B305

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