MAGNETIC AND STRUCTURAL-PROPERTIES OF MIXED-VALENCE MOLECULAR CONDUCTORS (DMEDCNQI)2CU AND (DMEODCNQI)2CU

被引：24

作者：

KAGOSHIMA, S

SUGIMOTO, N

OSADA, T

KOBAYASHI, A

KATO, R

KOBAYASHI, H

机构：

[1] UNIV TOKYO,DEPT CHEM,BUNKYO KU,TOKYO 113,JAPAN

[2] TOHO UNIV,DEPT CHEM,FUNABASHI,CHIBA 274,JAPAN

[3] UNIV TOKYO,INST SOLID STATE PHYS,TOKYO 106,JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1991年 / 60卷 / 12期

关键词：

MIXED-VALENCE; VALENCE FLUCTUATION; MOLECULAR CONDUCTOR; DCNQI; LOW DIMENSIONAL CONDUCTOR; HEAVY ELECTRON; CHARGE ORDERING; MAGNETIC SUSCEPTIBILITY;

D O I：

10.1143/JPSJ.60.4222

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Temperature dependence of magnetic susceptibilities and lattice parameters is measured at ambient pressure in the title compounds, which are metallic down to the lowest temperature measured and have a mixed valence state of Cu. In (DMeDCNQI)2Cu an anomalously large susceptibility having a thermal hysteresis is found in the range below 100 K. This result combined with the change in the lattice parameter tells that (DMeDCNQI)2Cu is a marginal metal in which the number of stable Cu2+ ions changes with temperature. It is pointed out that the reentrant behavior already found in the title compounds under respective pressure range has a close relation with the lattice-parameter change.

引用

页码：4222 / 4229

页数：8

共 17 条

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