ELECTRONIC-STRUCTURES AND PROPERTIES IN STRONGLY CORRELATED ELECTRON-SYSTEMS - PEROVSKITE-LIKE TITANATES

被引：1

作者：

TOKURA, Y

机构：

[1] Department of Physics, University of Tokyo, Tokyo

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1993年 / 32卷

关键词：

MOTT TRANSITION; TITANIUM OXIDE; PEROVSKITE; METAL-INSULATOR TRANSITION; CARRIER-DOPING;

D O I：

10.7567/JJAPS.32S3.209

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The Ti3+ (3d1) based oxide compounds are mostly Mott-Hubbard insulators or barely metallic due to the strong correlation between 3d electrons. With use of distorted perovskite-like structures RTiO3 (R = rare earth) and their R-site substitution with alkaline earth (A =Sr or Ca), we can systematically control the effective electron correlation (U/W) and the band filling of the 3d states. With decrease of the filling or with '' hole-doping'', the systems show the insulator-metal transition. Recent progress in experimental investigations on the metal-insulator transition is reviewed.

引用

页码：209 / 211

页数：3

共 12 条

[1] THE MIDINFRARED ABSORPTION IN RTIO3 PEROVSKITES (R = LA, CE, PR, ND, SM, GD) - THE HUBBARD GAP [J].