کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5490645 1524795 2017 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Biaxial-stress-driven full spin polarization in ferromagnetic hexagonal chromium telluride
ترجمه فارسی عنوان
قطبی شدن اسپین کامل اسپین در دو طیفی در تلورید کروم هگزاگونال فرومغناطیسی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
چکیده انگلیسی
It is important to spintronics to achieve fully-spin-polarized magnetic materials that are stable and can be easily fabricated. Here, through systematical density-functional-theory investigations, we achieve high and even full spin polarization for carriers in the ground-state phase of CrTe by applying tensile biaxial stress. The resulting strain is tensile in the xy plane and compressive in the z axis. With the in-plane tensile strain increasing, the ferromagnetic order is stable against antiferromagnetic fluctuations, and a half-metallic ferromagnetism is achieved at an in-plane strain of 4.8%. With the spin-orbit coupling taken into account, the spin polarization is equivalent to 97% at the electronic transition point, and then becomes 100.0% at the in-plane strain of 6.0%. These make us believe that the full-spin-polarized ferromagnetism in this stable and easily-realizable hexagonal phase could be realized soon, and applied in spintronics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 426, 15 March 2017, Pages 173-177
نویسندگان
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