Publication: Dynamics and Transport of the \(Z_2\) Spin Liquid: Application to \(\kappa-(ET)_2Cu_2(CN)_3\)
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Date
2009
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American Physical Society
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Qi, Yang, Cenke Xu, and Sachdev Subir. 2009. Dynamics and transport of the \(Z_2\) spin liquid: Application to \(\kappa-(ET)_2Cu_2(CN)_3\). Physical Review Letters 102(17): 176401.
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Abstract
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 \(S=\frac{1}{2}\) triangular lattice antiferromagnet in \(\kappa-(ET)_2Cu_2(CN)_3\) 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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strongly correlated electrons
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