Full-Heusler alloys are half-metallic materials which may be defined as a new state of matter between the insulating and metallic states. These materials have many important applications in spintronics or magnetoelectronic devices. We have done first-principles (ab-initio) calculation of the electronic structure, magnetic moment and spin density-maps for selected full-Heusler compounds. All the calculations were performed using the DFT-based electronic structure package WIEN2K. Half-metallicity (e.g. Co2Vga), nearly half metallic (e.g. Co2TiGa) and fully-metallic (e.g.Co2MnGa) behavior have been found in the compounds studied.
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