Abstract
Strong perpendicular magnetocrystalline anisotropy (MCA) and low saturation magnetization are found in DO22 Mn3Ga using the full-potential linearized augmented plane wave (FLAPW) method. The ferrimagnetism in the bulk is well preserved in the surfaces of Mn3Ga for two possible terminations, where the perpendicular MCA in the (001) direction is greatly enhanced over the bulk, consistent with experiments. Furthermore, the robustness of MCA with respect to lattice strain and a good lattice match with popular substrates suggest that Mn3Ga can be a good candidate for strain-resistance spintronics applications.
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