Monte Carlo calculation of the exchange couplings in Sr2CuIrO6 double perovskite

Abstract

This research gives a theoretical analysis of exchange couplings in double perovskite Sr2CuIrO6, using Monte Carlo simulation. The correlation between internal energy and magnetism at each site within the framework of the Ising model serves as the foundation for the numerical approach employed in this study. We have implemented a new parameter α and adopted the experimental Transition temperature reported beneath an external field of h=0.1T in order to compute the exchange couplings. Along with the magnetization at each site, magnetic susceptibility, and specific heat, the internal energy from each magnetic arrangement has also been computed for this project. The exchange couplings that were obtained are JCu−Ir=2.40meV,JCu−Cu=−2.00meV and JIr−Ir=0.365meV.