Charge ordering in θ-(BEDT-TTF)2RbZn(SCN)4

被引：30

作者：

Chiba, R ^{[1
]}

Yamamoto, HM

Hiraki, K

Nakamura, T

Takahashi, T

机构：

[1] Gakushuin Univ, Dept Phys, Toshima Ku, Tokyo 1718588, Japan

[2] Inst Phys & Chem Res, Wako, Saitama 3510198, Japan

[3] Inst Mol Sci, Okazaki, Aichi 4448585, Japan

来源：

SYNTHETIC METALS | 2001年 / 120卷 / 1-3期

关键词：

nuclear magnetic resonance spectroscopy; metal-insulator phase transition; organic conductors based on radical cation and/or anion salts;

D O I：

10.1016/S0379-6779(00)01059-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electronic state of theta-(BEDT-TTF)(2)RbZn(SCN)(4) has been investigated by the precise analyses of the angular dependence of C-13-NMR lineshape. It is found that the metal-insulator transition observed at 190 K at ambient pressure is of a novel type accompanied with a charge re-distribution in the organic layer. In the insulating state, the electric charges order as a stripe along the a-axes and the charge rich and poor sites alternate along the c-axes. The spin-singlet phase below 30 K is recognized as a spin-Peielrs transition of the 1D spin system.

引用

页码：919 / 920

页数：2

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