(DCNQI)2CU - A LUTTINGER-PEIERLS SYSTEM

被引：38

作者：

FUKUYAMA, H

机构：

[1] Department of Physics, Faculty of Science, University of Tokyo, Bunkyo-ku, Tokyo 113

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1992年 / 61卷 / 10期

关键词：

D O I：

10.1143/JPSJ.61.3452

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is indicated that the stability of average valence +4/3 of Cu, i.e. Cu+4/3, in various (DCNQI)2 Cu salts is the consequence of strong correlation at Cu sites. It is also discussed that the phase diagram separating metallic and insulating states together with the reentrance on the plane of pressure and temperature can be understood as due to the competition between the three-dimensionality and the Peierls instability associated with charge fluctuation of 4 k(F) as well as ordinary 2 k(F) in each chain.

引用

页码：3452 / 3456

页数：5

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