کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8158325 1524877 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
First-principle calculations on the electronic structures and magnetic properties of Heusler compounds V2ReZ (Z=B, Al, Ga, In, Si, Ge, Sn, Sb)
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
First-principle calculations on the electronic structures and magnetic properties of Heusler compounds V2ReZ (Z=B, Al, Ga, In, Si, Ge, Sn, Sb)
چکیده انگلیسی
The electronic structures and magnetic properties of V2ReZ (Z=B, Al, Ga, In, Si, Ge, Sn, Sb) compounds with CuHg2Ti-type structure have been investigated. V2ReZ (Z=Al, Ga, In) compounds are predicted to be half-metallic ferrimagnets at their equilibrium lattice parameter. The half-metallicity can be achieved by expanding the lattice parameter for V2ReB compound. The half-metallicity still holds when the lattice expansion, contraction or tetragonal deformation occurs for V2ReZ (Z=B, Al, Ga, In). The energy gap between the eg and t2g states is the half-metallic gap for V2ReZ (Z=B, Al, Ga, In) compounds, which causes the compounds to not follow the Mt=Zt−24 rule but follow an Mt=Zt−18 rule instead. The influences of lattice change and different Z atoms on half-metallicity and magnetic properties are also discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 343, October 2013, Pages 268-275
نویسندگان
, , , , , , , ,