NMR evidence for antiferromagnetic transition in the single-component molecular conductor, [Au(tmdt)2] at 110K

被引:27
|
作者
Hara, Yohta [1 ]
Miyagawa, Kazuya [1 ]
Kanoda, Kazushi [1 ]
Shimamura, Mina [2 ]
Zhou, Biao [3 ]
Kobayashi, Akiko [2 ,3 ]
Kobayashi, Hayao [3 ,4 ]
机构
[1] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1130033, Japan
[2] Univ Tokyo, Grad Sch Sci, Res Ctr Spectrochem, Kawaguchi, Saitama 3320012, Japan
[3] Nihon Univ, Coll Humanities & Sci, Dept Chem, Tokyo 1568550, Japan
[4] Inst Mol Sci, Okazaki, Aichi 4448585, Japan
关键词
single-component molecular conductor; NMR; Au(tmdt)(2); magnetic phase transition;
D O I
10.1143/JPSJ.77.053706
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present the results of a H-1 NMR study of the single-component molecular conductor, [Au(tmdt)(2)]. A steep increase in the NMR line width and a peak formation of the nuclear spin-lattice relaxation rate, I IT,, were observed at around 110 K. This behavior provides clear and microscopic evidences for a magnetic phase transition at considerably high temperature among organic conductors. The observed variation in I IT, with respect to temperature indicates the highly correlated nature of the metallic phase.
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页数:4
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