Evidence of one-dimensional magnetic heat transport in the triangular-lattice antiferromagnet Cs2CuCl4

  title={Evidence of one-dimensional magnetic heat transport in the triangular-lattice antiferromagnet 
  author={E. Schulze and Stevan Arsenijevi{\'c} and Lars Opherden and A. N. Ponomaryov and Joachim Wosnitza and Toshio Ono and H. Tanaka and Sergei A. Zvyagin},
  journal={Physical Review Research},
We report on low-temperature heat-transport properties of the spin-1/2 triangular-lattice antiferromagnet Cs$_2$CuCl$_4$. Broad maxima in the thermal conductivity along the three principal axes, observed at about 5 K, are interpreted in terms of the Debye model, including the phonon Umklapp scattering. For thermal transport along the $b$ axis, we observed a pronounced field-dependent anomaly, close to the transition into the three-dimensional long-range-ordered state. No such anomalies were… 

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