LAUSR

Abstract As available in the literature, the physical properties of ternary intermetallic compounds (Heusler alloys) are highly influenced by atomic positions. Therefore, we studied the effect of antisite disorder or swapping X to Y position on the electrical and magnetic properties of the Co2VIn Heusler alloy. We performed first-principles calculations using the full-potential linearized augmented plane wave (FP-LAPW) within wein2k. The compounds Co2VIn and V2CoIn were found to be stable in ferromagnetic state. It was observed that the swapping of Co-V enhanced the magnetic moment two times larger than Co2VIn alloy. Also, swapping Co-V diminished the half-metallic character of Co2VIn and showed the traditional metallic behavior due to delocalization of valence electrons. Apart from swapping, 16.7% V inclusion in Co2VIn alloy offers the more stable behavior than other systems, but suppress the magnetic moment in compare to Co2VIn and V2CoIn systems.