H-1-NMR STUDY OF MAGNETIC ANOMALY IN (BEDT-TTF)(3)CUBR4

被引:8
作者
TSUCHIYA, R
YOSHIZAKI, S
NAKAMURA, T
TAKAHASHI, T
YAMAURA, J
SUZUKI, K
ENOKI, T
SAITO, G
机构
[1] TOKYO INST TECHNOL,DEPT CHEM,MEGURO KU,TOKYO 152,JAPAN
[2] KYOTO UNIV,DEPT CHEM,SAKYO KU,KYOTO 60601,JAPAN
关键词
D O I
10.1016/0379-6779(94)02721-A
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The H-1-NMR measurements were carried out on the organic conductor, (BEDT-TTF)(3)CuBr4, where strong coupling between a and 3d electrons are expected. The H-1 spin-lattice relaxation rate, T-1(-1), was large about 20 sec(-1) and almost temperature independent above 60 K, indicating the effect of localized magnetic moments. Anomalies at the structural transition (60 K) was small. An antiferromagnetic transition was confirmed: The magnitude of the moment at Cu site was estimated as 0.6-0.7 mu(B). The moment at the Cu site was found to survive in the metallic state under pressure.
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页码:967 / 968
页数:2
相关论文
共 4 条
[1]   EXPERIMENTS ON SIMPLE MAGNETIC MODEL SYSTEMS [J].
DEJONGH, LJ ;
MIEDEMA, AR .
ADVANCES IN PHYSICS, 1974, 23 (01) :1-260
[2]  
JACCARINO V, 1965, MAGNETISM A, V2, P333
[3]  
SUZUKI K, 1993, SYNTHETIC MET, V55, P2191
[4]  
TAKAHASHI T, 1993, SYNTHETIC MET, V55, P2281