Thermal Properties of the Trigonal Quaternary Nonlinear Crystals BaGa2GeS6 and BaGa2GeSe6

The uniaxial nonlinear crystals BaGa2GeS6 and BaGa2GeSe6 are characterized in terms of thermal diffusivity and specific heat over a temperature range of -90 to 250 °C for heat propagation along and perpendicular to the c-axis.