Charge order in quasi-one-dimensional organic charge-transfer solids

被引：1

作者：

Clay, RT ^{[1
]}

Campbell, DK

Mazumdar, S

机构：

[1] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[2] Japan Sci & Technol Corp JST, ERATO Cooperat Excitat Project, Tucson, AZ 85721 USA

[3] Boston Univ, Dept Elect & Comp Engn, Boston, MA 02215 USA

[4] Boston Univ, Dept Phys, Boston, MA 02215 USA

来源：

SYNTHETIC METALS | 2003年 / 135卷 / 1-3期

关键词：

organic conductors based on radical cation and/or anion salts; organic superconductors;

D O I：

10.1016/S0379-6779(02)00782-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We examine two proposed models of the observed charge ordering (CO) in the quasi-1D, 1/4-filled organic charge transfer solids. The models are characterized by the site charge densities ..1010.. and ..1100.. respectively. Using a Peierls-extended Hubbard model to include both electron-electron and electron-phonon interactions, we show that 1) the ..1010.. CO can occur only when the nearest-neighbor Coulomb repulsion is sufficiently strong; 2) a spin-Peierls state can coexist with the ..1010..CO; and 3) experimental evidence clearly supports ..1100.. CO in the (TMTSF) and the 1:2 anionic CTS, while in the (TMTTF) salts the nature of the order is not yet clear.

引用

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页码：681 / 682

页数：2

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