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
相关论文
共 50 条
  • [1] Depressed charge gap in the triangular-lattice Mott insulator κ-(ET)2Cu2(CN)3
    Kezsmarki, I.
    Shimizu, Y.
    Mihaly, G.
    Tokura, Y.
    Kanoda, K.
    Saito, G.
    PHYSICAL REVIEW B, 2006, 74 (20):
  • [2] Emergence of inhomogeneous moments from spin liquid in the triangular-lattice Mott insulator κ-(ET)2Cu2(CN)3
    Shimizu, Y
    Miyagawa, K
    Kanoda, K
    Maesato, M
    Saito, G
    PHYSICAL REVIEW B, 2006, 73 (14):
  • [3] Transport properties of a Mott insulator κ-(ET)2Cu2(CN)3 under the uniaxial strain
    Shimizu, Y
    Maesato, M
    Saito, G
    Drozdova, O
    Ouahab, L
    SYNTHETIC METALS, 2003, 133 : 225 - 226
  • [4] Uniaxial Strain Effects on Mott and Superconducting Transitions in κ-(ET)2Cu2(CN)3
    Shimizu, Yasuhiro
    Maesato, Mitsuhiko
    Saito, Gunzi
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2011, 80 (07)
  • [5] Carrier-doping in a Mott-insulator κ-(BEDT-TTF)2Cu2(CN)3
    Kyoto Univ, Kyoto, Japan
    Mol Cryst Liq Cryst Sci Technol Sect A Mol Crys Liq Cryst, (51-56):
  • [6] Anomalous dielectric response in the dimer Mott insulator κ-(BEDT-TTF)2Cu2(CN)3
    Abdel-Jawad, Majed
    Terasaki, Ichiro
    Sasaki, Takahiko
    Yoneyama, Naoki
    Kobayashi, Norio
    Uesu, Yoshiaki
    Hotta, Chisa
    PHYSICAL REVIEW B, 2010, 82 (12):
  • [7] NMR study of the spin-liquid state and Mott transition in the spin-frustrated organic system, κ-(ET)2Cu2(CN)3
    Shimizu, Y
    Kurosaki, Y
    Miyagawa, K
    Kanoda, K
    Maesato, M
    Saito, G
    SYNTHETIC METALS, 2005, 152 (1-3) : 393 - 396
  • [8] Magnetic properties of κ-(ET)2Cu2(CN)3
    Shimizu, Y
    Maesato, M
    Saito, G
    Miyagawa, K
    Kanoda, K
    SYNTHETIC METALS, 2003, 137 (1-3) : 1247 - 1248
  • [9] Nonmagnetic impurities in a S=1/2 frustrated triangular antiferromagnet: Broadening of 13C NMR lines in κ-(ET)2Cu2(CN)3
    Gregor, Karol
    Motrunich, Olexei I.
    PHYSICAL REVIEW B, 2009, 79 (02):
  • [10] Variational study of triangular lattice spin-1/2 model with ring exchanges and spin liquid state in κ-(ET)2Cu2(CN)3 -: art. no. 045105
    Motrunich, OI
    PHYSICAL REVIEW B, 2005, 72 (04):
12345