２００１年　研究業績

原著論文・解説記事

1. Y. Moritomo, T. Akimoto, H. Fujishiro and A. Nakamura, “Specific heat of La_1-xSr_xMnO₃  (x = 0.5): Comparison between three- and two-dimensional metallic states”, Phys. Rev. B64, 064404 (2001) (4 pages)
2. Y. Moritomo,  Sh. Xu, A. Machida, T. Katsufuji, E. Nishibori, M. Takata, M. Sakata and S-W. Cheong, “Chemical pressure control of exchange interaction in Mo pyrochlore”, Phys. Rev. B63, 144425 (2001) (5 pages)
3. Y. Moritomo, N. Shimamoto, Sh. Xu, A. Machida, E. Nishibori, M. Takata, M. Sakata and A. Nakamura, ”Effects of B-Site Disorder in Sr₂FeMoO₆ with Double Perovskite Structure”, Jpn. J. Appl. Phys. 40, L672 - L674 (2001)
4. Y. Moritomo, H. Kusuya, A. Machida, E. Nishibori, M. Takata, M. Sakata, and A. Nakamura, “Fe-site substitution effects on conductive ferromagnet Sr₂FeMoO₆”, J. Phys. Soc. Jpn. 70, 3182-3183 (2001)
5. Y. Moritomo, A. Machida, E. Nishibori, M. Takata and M. Sakata, “Enhanced specific heat jump in electron-doped CaMnO₃: Spin ordering driven by charge separation”, Phys. Rev. B64, 214409 (2001) (5 pages)
6. X. J. Liu, Y. Moritomo, A. Machida, A. Nakamura, H. Tanaka and T. Kawai, ”Photoinduced formation of charge-ordering clusters in a manganite film”, Phys. Rev. B63, 115105 (2001) (5 pages)
7. X. J. Liu, Y. Moritomo, A. Nakamura, H. Tanaka and T. Kawai, “Critical behavior of a photoinduced spin system in doped manganite”, Phys. Rev. B64, 100401 (2001) (4 pages)
8. X. J. Liu, Y. Moritomo, A. Nakamura, T. Hirao, S. Toyazaki, and N. Kojima, “Photoinduced phase transition and relaxation behavior in a spin-crossover Fe (II) complex Nafion-[Fe(Htrz) ₃] film”, J. Phys. Soc. Jpn. 70, 2521 - 2524 (2001)
9. X. J. Liu, Y. Moritomo, A. Nakamura, and N. Kojima, “Pressure- and photo-induced phase transitions in mixed-valence gold complexes (Review paper)”, Phase Transitions, 74, 51 - 92 (2001)
10. X. J. Liu, Y. Moritomo, A. Nakamura, H. Tanaka, and T. Kawai, “Critical slowing down in La_0.7Sr_0.3MnO₃: Comparison with La_0.7Ca_0.3MnO₃”, J. Phys. Soc. Jpn., 70, 3466 - 3467 (2001)
11. X. J. Liu, Y. Moritomo, A. Nakamura and N. Kojima, " Dynamical process of photo-induced phase transition in a miced-valenmce gold comple", J. Limi 94-95, 541-545 (2001).
12. X. J. Liu, Y. Moritomo, H. Tanaka, T. Kawai and A. Nakamura, "Dymanical properties of photo-induced spin disorder in doped manganites", J. Limi 94-95, 545-549 (2001).
13. Sh. Xu, Y. Moritomo, K. Kato and A. Nakamura, “Mn-substitution effects on MgB₂ superconductor”, J. Phys. Soc. Jpn. 70 1889 - 1891 (2001).
14. Sh. Xu, Y. Moritomo, K. Oikawa, and T. Kamiyama and A. Nakamura, “Lattice structural change at ferromagnetic transition in Nd₂Mo₂O₇”, J. Phys. Soc. Jpn. 70, 2239 - 2241 (2001)
15. Sh. Xu, Y. Moritomo, K. Mori, T. Kamiyama, T. Saitoh and A. Nakamura, “Structural parameters of LaCoO₃ near the spin state transition”, J. Phys. Soc. Jpn, 70, 3296 - 3299 (2001)
16. Y. Moritomo and A. Machida, “Phase separation problem of doped manganites”, Recent Res. Devel. Physics, 2, 315 - 344 (2001)
17. A. Machida, Y. Moritomo, K. Ohoyama and A. Nakamura, “Neutron structural analysis of Tb_1-xCa_xMnO₃ (x = 0.5)”, J. Phys. Soc. Jpn., 70 3739 - 3746 (2001)
18. H. Kusuya, A. Machida, Y. Moritomo, K. Kato, E. Nishibori, M. Takata, M. Sakata and A. Nakamura, “Structural Change at Metal-Insulator Transition of Tb₂Ba₂Co₄O₁₁”, J. Phys. Soc. Jpn., 70 3577 - 3580 (2001)
19. D. B. Romero , Y. Moritomo, J. F. Mitchell and H. D. Drew, “Competition of charge, orbital, and ferromagnetic correlations in layered manganites”, Phys. Rev. B63, 132404 (2001) (4 pages)
20. R. Shoji, S. Mori, N. Yamamoto, A. Machida, Y. Moritomo and T. Katsufuji,, “Phase separation and destabilization of the charge-ordered state in Cr-doped manganites”, J. Phys. Soc. Jpn. 70 267 - 271 (2001）
21. Y. Wakabayashi, Y. Murakami, Y. Moritomo, I. Koyama, H. Nakao, T. Kiyama, T. Kimura, Y. Tokura and N. Wakabayashi,, “Orbital and charge ordering in La_1+xSr_1+xMnO₄ (0.4 < x <0.5)”, J. Phys. Soc. Jpn. 70 1194 - 1197 (2001)
22. K. Matsuno, T. Katsufuji, S. Mori, Y. Moritomo, A. Machida, E. Nishibori, M. Takata, M. Sakata, N. Yamamoto and H. Takagi, “Charge ordering in the geometrically frustrated spinel AlV₂O₄”, J. Phys. Soc. Jpn. 70 1456 - 1459 (2001)
23. T. Katsufuji, S. Mori, M. Masaki, Y. Moritomo, N. Yamamoto, and H. Takagi, ”Dielectric and magnetic anomalies and spin frustration in hexagonal RMnO₃ (R = Y, Yb, and Lu)”, Phys. Rev. B64, 104419 (2001) (6 pages)
24. I. A. Zaliznyak, J. M. Tranquada, R. Erwin and Y. Moritomo, “Spin-entropy-driven melting of the charge order in La_1.5S_0.5CoO₄”, Phys. Rev. B64, 195117 (2001) (4 pages)
25. H. Yanagihara, M. B. Salamon, Y. Lyanda-Geller, Sh. Xu, and Y. Moritomo, “Magnetotransport in double perovskite Sr₂FeMoO₆: Role of magnetic and nonmagnetic disorder”, Phys. Rev. B64, 214407 (2001) (4 pages)
26. H. J. Lee, J. H. Jung, K. H. Kim, M. W. Kim, T. W. Noh, Y. Moritomo, Y. J. Wang and X. Wei, "Magnetic-filed-dependent optical studied of Pr0.69Ca0.31MnO3", Physica C364-365, 614-617 (2001).
27. M. W. Kim, J. H. Jung, H. J. Lee, S. K. Lee, K. H. Kim, T. W. Noh and Y. Moritomo, "Mid-infrared optical conductivity spectra of Nd1-xSrxMnO3: orbital pattern dependent polaron hopping", Physica C364-365, 652-655 (2001).
28. N. Furukawa, Y. Shimomura, T. Akimoto and Y. Moritomo, "Magnon scatttering processes and low-temperarture resistivity in CRM manganites", J. Mag. Mag. Mat. 226-230, 782-783 (2001).
29. M. Kubota, H. Yoshizawa, H. Fujioka, K. Hirota, Y. Moritomo and Y. Endoh, "Examination of spin fluctuation within the MnO2 layers in a bilayer manganite la1.1Sr1.9Mn2O7", J. Phys. Chem. Solids, 62, 317-319 (2001).
30. 守友　浩「マンガン酸化物の巨大磁気抵抗効果」セラミクス誌、36、561 - 564 (2001)