Charge ordering and lattice modulation in MMX chains

被引：26

作者：

Kuwabara, M ^{[1
]}

Yonemitsu, K

机构：

[1] Inst Mol Sci, Dept Theoret Studies, Okazaki, Aichi 4448585, Japan

[2] Grad Univ Adv Studies, Dept Funct Mol Sci, Okazaki, Aichi 4448585, Japan

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2001年 / 62卷 / 1-2期

关键词：

inorganic compounds; charge-density wave; phase transitions;

D O I：

10.1016/S0022-3697(00)00183-9

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ground state phase diagrams for the MMX chains are studied in a one-dimensional two-band model by exactly diagonalizing 18-site clusters. Experimentally observed phases are reproduced by changing relative strengths of an electron-lattice coupling the interdimer transfer integral, and an elastic constant, whose variation is roughly estimated from the interatomic spacing, the species of the halogen ion, and the presence/absence of counter ions. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：435 / 438

页数：4

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