Elastic constants and ultrasound attenuation in the spin-liquid phase of Cs${}_2$CuCl${}_4$

S. Streib, P. Kopietz, P. T. Cong +5

The spin excitations in the spin-liquid phase of the anisotropic triangular lattice quantum antiferromagnet Cs${}_2$CuCl${}_4$ have been shown to propagate dominantly along the crystal…