METAL-INSULATOR-TRANSITION IN 3D TRANSITION-METAL OXIDES WITH ABO3 AND A2BO4 TYPE STRUCTURES

被引:11
作者
EISAKI, H
IDO, T
MAGOSHI, K
MOCHIZUKI, M
YAMATSU, H
ITO, T
UCHIDA, S
机构
[1] Department of Applied Physics, University of Tokyo, Yayoi
来源
PHYSICA C | 1991年 / 185卷 / pt 2期
关键词
5;
D O I
10.1016/0921-4534(91)91871-Z
中图分类号
O59 [应用物理学];
学科分类号
摘要
3d transition-metal oxides with perovskite and K2NiF4 crystal structures, (La,Sr)VO3, (La,Sr)FeO3, (La,Sr)CoO3, LaNiO3 and (La,Sr)2NiO4 systems are investigated focusing on the effect of carrier doping performed by the A-site ion substitution. Both (La,Sr)VO3 and (La,Sr)CoO3 systems show an insulator to metal transition by Sr substitution, however, the magnetic behavior differs drastically. The mid-infrared structure induced by Sr substitution is observed in the optical spectra of (La,Sr)2NiO4 system. Relation between the behavior of metal-insulator transition and the variation of the electronic and/or spin structure in these systems is discussed in comparison with the high-T(c) copper oxides.
引用
收藏
页码:1295 / 1296
页数:2
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