１９９８年　研究業績

原著論文・解説記事

1. Y. Moritomo, M. Takeo, X. J. Liu, T. Akimoto and A. Nakamura, “Metal-insulator transition due to charge-ordering in R_1/2Ba_1/2CoO₃”, Phys. Rev. B58 R13334 - R13337 (1998)
2. Y. Moritomo, T. Akimoto, A. Nakamura, K. Ohoyama and M. Ohashi, “Antiferromagnetic metallic state in the heavily doped region of perovskite manganites”, Phys. Rev. B58, 5544 - 5549 (1998)
3. Y. Moritomo, Y. Maruyama, T. Akimoto and A. Nakamura, “Layered-type antiferromagnetic state in double-layered manganites: (La_1-zNdz_z)_2+2xSr_1+2xMn₂O₇”, J. Phys. Soc. Jpn., 67 405 - 408 (1998)
4. A. Machida, Y. Moritomo and A. Nakamura, “Temperature evolution of 1.5 eV absorption band in doped manganites: Formation of Jahn-Teller cluster”, Phys. Rev. B58 12540 - 12542 (1998)
5. A. Machida, Y. Moritomo and A. Nakamura, “Spectroscopic evidence for formation of small polarons in doped manganites”, Phys. Rev. B, 58, R4281 - R4284 (1998)
6. T. Akimoto, Y. Maruyama, Y. Moritomo, A. Nakamura, K. Hirota, K. Ohoyama and M. Ohashi, “Antiferromagnetic metallic state in doped manganites”, Phys. Rev. B57 R5594 - R5597 (1998)
7. K. Matsuda, A. Machida, Y. Moritomo and A. Nakamura, “Photo-induced demagnetization and its dynamical behavior in (Nd_0.5Sm_0.5) _0.6Sr_0.4MnO₃ thin films”, Phys. Rev. B58 R4203 - R4206 (1998)
8. K. Hirota, Y. Moritomo, H. Fujioka, M. Kubota, H. Yoshizawa and Y. Endo,”Neutron diffraction studies on the magnetic ordering process in the layered Mn perovskite La_2+2xSr_1+2xMnO₇ (x=0.40, 0.45 and 0.48)”, J. Phys. Soc. Jpn. 67, 3380 - 3383 (1998)
9. D. S. Dessau, T. Saito, C.-H. Park, Z.-X. Shen, P. Villella, N. Hamada, Y. Moritomo and Y. Tokura, “k-dependent electronic structure, a large "ghost" fermi surface, and a pseudogap in a layered mangnetoresistive oxide”, Phys. Rev. Lett. 81, 192 - 195 (1998)
10. Y. Murakami, H. Kawada, H. Kawata, M. Tanaka, T. Arima, Y. Moritomo and Y. Tokura, “Direct observation of charge and orbital ordering in La_0.5Sr_1.5MnO₄.”, Phys. Rev. Lett. 80, 1932 - 1935 (1998)
11. D. S. Dessau, T. Saitoh, P. Villella, C. -H. Park, Z. -X. Shen, Y. Moritomo and Y. Tokura, "Comparison of the measured electronic structure of the colossal magnetoresistive manganites and high-Tc superconductors: band structure, photoemission lineshapes, and a pseudogap", J. Phys. Chem. Solids 59, 1917-1920 (1998).
12. Y. Kuwata, S. Suga, S. Imada, A. Sekiyama, S. Ueda, T.Iwasaki, H. Harada, T. Muro, T. Fukawa, K. Ashida, H. Yoshioka, T. Terauchi, J. Sameshima, H. Kuwahara, Y. Moritomoand Y. Tokura, "Electronic structure of Nd1-xSrxMnO3, La1-xSrxMnO3 and La1-xcaxMnO3 studied by photoemission and inverse phtoemission spectroscopy", Journal of Electron Spectroscopy and Related Phenomena 88-91, 281-285 (1998).
13. 守友　浩「高圧ラマン散乱で見た水素結合の局所対称性」日本結晶学会誌、40、43 - 47 (1998)
14. 守友　浩、中村新男「層状ペロブスカイト型Mn酸化物における格子効果 - 化学圧力によるe_g軌道の制御 -」固体物理、33、106 - 112 (1998)
15. 村上洋一、川田　肇、田中雅彦、小山一郎、川田　洋、有馬孝尚、守友　浩、十倉好紀「層状ペロブスカイト型マンガン酸化物の電荷・軌道秩序の直接観測」日本放射光学会誌、11、30 - 37 (1998)