Effect of gamma irradiation and Dy atoms on the thermal conductivity of TlInSe2 crystals

Abstract

TlInSe2 crystals were grown by Bridgman method. The thermal conductivity coefficient was studied in the temperature range of 80–600[Formula: see text]K, along and perpendicular to the parallelepiped sample layers. The corresponding parameters of the TlInSe2 crystal were calculated based on the performed experiments. The results of the performed analysis have shown that the theoretical calculations and experimental results are of the same order, while the obtained and calculated values differ from each other by a factor of two. The temperature dependence of the thermal conductivity coefficient of TlIn[Formula: see text]DyxSe2 solid solutions is also studied. Moreover, effect of the gamma irradiation on the temperature dependence of the thermal conductivity of the TlInSe2 crystals were studied.