Magnetic properties of superconducting salts, (DODHT)2X (X = AsF6, PF6 and BF4)

被引：3
|
作者：
Nishikawa, H
Sato, Y
Kodama, T
Kikuchi, K
Ikemoto, I
Yamada, JI
机构：
[1] Tokyo Metropolitan Univ, Dept Chem, Hachioji, Tokyo 1920397, Japan
[2] Himeji Inst Technol, Dept Mat Sci, Hyogo 6781297, Japan
来源：
JOURNAL DE PHYSIQUE IV | 2004年 / 114卷
关键词：
organic superconductor; magnetic property; electron spin resonance; charge ordering;
D O I：
10.1051/jp4:2004114134
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The magnetic properties of organic superconductors (DODHT)(2)X [(1,4-dioxane-2,3-diyldithio)dihydro- tetrathiafulvalene; X = AsF6, PF6 and BF4.H2O] were investigated by ESR and magnetic susceptibility measurements. At ambient pressure, the salts exhibited semiconducting behavior with some anomalies. The ESR linewidth gradually decreased and showed an inflection at the temperature where resistive anomaly was observed. The temperature dependence of the spin susceptibility estimated from the ESR signal intensity showed a broad maximum at 150 - 200 K. The correspondence of the temperature dependence of the magnetic Susceptibility obtained by SQUID measurements to the ESR results and suggests low dimensional antiferromagnetic (AF) ordering, which is expected when charge ordering occurs in the semiconducting - insulating region.
引用
收藏
页码：565 / 567
页数：3
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