Structural, electronic and magnetic properties of CoFeTiGa1−xSbx compounds
2017
Abstract Structural, electronic and magnetic properties of Heusler compounds CoFeTiGa 1− x Sb x have been studied. X-ray diffraction patterns show that CoFeTiGa 1− x Sb x ( x =0.25, 0.5, 0.75, 1) crystallize into LiMgPdSn-type structure. First-principles calculations indicate that CoFeTiGa 1− x Sb x ( x =0.25, 0.5, 0.75, 1) are half-metal with considerable minority band gaps. The substitution of Sb for Ga gives rise to the spin moments of the compounds, and makes them to be half-metallic ferrimagnets.
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