Thermal conductivity of CsMnCl3 · 2H2O

Abstract The low temperature thermal conductivity of the pseudo one-dimensional Heisenberg antiferromagnet CsMnCl 3 · 2H 2 O has been measured along the chain direction. Data obtained in an external magnetic field show that the decrease of the thermal conductivity caused by magnon-phonon scattering dominates the increase due to the conductivity of the magnon system.