Dynamics and Transport of the Z2 Spin Liquid: Application to κ-(ET)2Cu2(CN)3

被引：65
|
作者：
Qi, Yang [1 ]
Xu, Cenke [1 ]
Sachdev, Subir [1 ]
机构：
[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA
来源：
PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 17期
基金：
美国国家科学基金会;
关键词：
FRUSTRATED QUANTUM ANTIFERROMAGNETS; VALENCE-BOND STATE; TRIANGULAR-LATTICE; HEISENBERG ANTIFERROMAGNETS; KAGOME-LATTICE; GROUND-STATE; MODEL; ORDER;
D O I：
10.1103/PhysRevLett.102.176401
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We describe neutron scattering, NMR relaxation, and thermal transport properties of Z(2) spin liquids in two dimensions. Comparison to recent experiments on the spin S=1/2 triangular lattice antiferromagnet in kappa-(ET)(2)Cu-2(CN)(3) shows that this compound may realize a Z(2) spin liquid. We argue that the topological "vison" excitations dominate thermal transport, and that recent thermal conductivity experiments by M. Yamashita et al. have observed the vison gap.
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页数：4
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