Possible Mott transition in (BEDT-TTF)(2)CsZn(SCN)(4)

被引：7

作者：

Nakamura, T

Kinami, R

Minagawa, W

Takahashi, T

Mori, H

Tanaka, S

Mori, T

机构：

[1] INT SUPERCONDUCT TECHNOL CTR,SRC,TOKYO 135,JAPAN

[2] TOKYO INST TECHNOL,DEPT ORGAN & POLYMER MAT,TOKYO 152,JAPAN

来源：

SYNTHETIC METALS | 1997年 / 86卷 / 1-3期

关键词：

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

D O I：

10.1016/S0379-6779(97)80992-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetic properties of a new organic conductor, (BEDT-TTF)(2)CsZn(SCN)(4), have been investigated by H-1-NMR, EPR and SQUID measurements. The resistivity of the title compound exhibits a small temperature dependence down to about 50 K and an abrupt increase below 20 K. The spin susceptibility was almost temperature independent down to 20 K, and exhibits a Curie-Weiss behavior below that temperature. The H-1-NMR spin-lattice relaxation rate, T-1(-1), has a large temperature dependence with a broad minimum around 50 K. We discuss the electronic structure of the low-temperature insulating states of this system.

引用

页码：1991 / 1992

页数：2

共 5 条

[1] Three-component organic conductors; (BEDT-TTF)(2)MM'(SCN)(4) [J].