4 A pr 2 00 9 Dynamics and transport of the Z 2 spin liquid : application to κ -
نویسنده
چکیده
We describe neutron scattering, NMR relaxation, and thermal transport properties of Z2 spin liquids in two dimensions. Comparison to recent experiments on the spin S = 1/2 triangular lattice antiferromagnet in κ-(ET)2Cu2(CN)3 shows that this compound may realize a Z2 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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تاریخ انتشار 2009