Investigation of the thermal conductivity of optically nonlinear crystals of proustite and pyrargyrite

The results are given of an experimental investigation of the temperature dependences of the thermal conductivity of synthetic single crystals of proustite (Ag₃AsS₃) and pyrargyrite (Ag₃SbS₃) in the range 100–400°K. In this range of temperatures the thermal conductivity was due to the lattice mechanism. A slight anisotropy of the conductivity was observed.