Thermal conduction in In

We report on theoretical investigation of the thermal conductivity of InxGa1−xN $(0\leq x \leq 1)$ films over a wide range of temperature by using both Debye's model and Callaway's one. As the In content increases, the thermal conductivity decreases until 50% In content and beyond that it increases with the increase in In content with a sudden jump near 90% In content. The mass disorder scattering contribution is nearly 100% near the thermal conductivity peak and decreases very slowly with the increase in temperature. The mass disorder scattering has a very significant contribution both in the thermal conductivity peak region and in the higher temperature region. The boundary scattering contribution is significant in the low temperature region and the N-drift scattering contribution increases with the increase in temperature