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

页码：299 / 300

页数：2