Effect of High Temperature on Phase Transition of Nickel Oxide (NiO) by Simulation Using Ising Model

Abstract

In this research had been studied the simulation effect of higher temperature on physical properties such as the critical temperature (Tc), the magnetization per spin (M), the energy per spin (E), the magnetic susceptibility (χ), the specific heat (Cv ) of NiO for a 6X6 square lattice in the absence of external magnetic field. The simulation results showed that the magnetization per spin changed from a positive value to a negative value at critical temperature Tc≈ 47.2679045 J/KB this indicates that the material transited from Antiferromagnetic to diamagnetic state. Also, the ground state energy of NiO was determined to be -38.125 meV.