Physical properties of isostructural Ga2MnCo Heusler alloy : A first principles calculations and mean field approximation

simulation.The two phase diagrams obtained in the absence of the magnetic field h are plotted in the (T,JA) and (T,D) planes respectively.The results found indicate that the system exhibits two types of phase transitions, namely first-and second-order.One and two compensation points appear in this system.The effect of the external magnetic field h on the magnetic properties of the system was also studied.In the presence of this field and by varying the crystal field of the DB sub-lattice, hysteresis loops were obtained.These results are in good