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
收藏
页码：4222 / 4229
页数：8
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