Molecular dynamics simulation of thermal conductivity of GaN/AlN quantum dot superlattices

We calculated thermal conductivity of GaN/AlN quantum dot superlattices by molecular dynamics simulation. The results of investigation of the effect of quantum dots on thermal conductivity as a function of superlattice period are presented in this paper. An empirical potential function of Stillinger‐Weber potential was used for simulations. Thermal conductivity was obtained by Green‐Kubo's equation. The results show that the values of thermal conductivity parallel to the wetting layers decreased due to the effect of quantum dots. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)