Theories on 1/4-filled one-dimensional systems - effects of frustration and electron-lattice coupling

被引：2
|
作者：
Seo, H
Ogata, M
机构：
[1] AIST, CERC, Ibaraki 3058562, Japan
[2] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
来源：
SYNTHETIC METALS | 2003年 / 133卷
关键词：
charge ordering; electron-electron interaction; one-dimensionality; frustration; electron-phonon interaction;
D O I：
10.1016/S0379-6779(02)00317-X
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The interplay between the charge ordering due to inter-site Coulomb interaction and additional effects, such as the geometrical frustration and the coupling to the lattice, are studied for 1/4-filled one-dimensional systems. We have found that in the transition metal oxide PrBa2Cu4O8 the frustration effect can give rise to a "melting" of the charge ordered state resulting in a peculiar metallic state, while in the organic conductors (TMTTF)(2)X (X = PF6, AsF6), the electron-phonon interaction stabilizes a new coexistent state of charge order (CO) and spin-Peierls lattice distortion. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：299 / 300
页数：2
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