1H-NMR study of Mott insulator κ-(ET)2Cu2(CN)3 with isotropic triangular lattice

被引：0
|
作者：
Shimizu, Y [1 ]
Miyagawa, K
Oda, K
Kanoda, K
Maesato, M
Saito, G
机构：
[1] Kyoto Univ, Grad Sch Sci, Div Chem, Sakyo Ku, Kyoto 6068502, Japan
[2] Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan
[3] Japan Sci & Technol Corp, CREST, Kawaguchi, Saitama 3320012, Japan
来源：
JOURNAL DE PHYSIQUE IV | 2004年 / 114卷
关键词：
triangular lattice; Mott insulator; spin liquid;
D O I：
10.1051/jp4:2004114088
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
H-1 NMR measurement was performed for a single crystal sample of the organic Mott insulator kappa-(ET)2Cu2(CN)3 with a nearly isotropic triangular lattice. The I H NMR spectra and the spin-lattice relaxation rate, 1/T1, show no indication of magnetic transition down to 30 mK. However, the line shows a slight but gradual broadening accompanied with only a moderate increase m the spin-lattice relaxation rate, 1/T1, below 4 K. It suggests a possible change of spin dynamics of the frustrated quantum spins.
引用
收藏
页码：377 / 378
页数：2
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