کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1803984 1524899 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Role of the presence of transition-metal atoms at the antisites in CrAs, CrSe and VAs zinc-blende compounds
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Role of the presence of transition-metal atoms at the antisites in CrAs, CrSe and VAs zinc-blende compounds
چکیده انگلیسی

In a recent publication [I. Galanakis, K. Özdog˜an, E. Şaşıog˜lu, B. Aktaş, Phys. Rev. B 74 (2006) 140408(R)] we have shown that in the case of CrAs and related transition-metal chalcogenides and pnictides, crystallizing in the zinc-blende structure, the excess of the transition-metal atoms leads to half-metallic ferrimagnetism. The latter property is crucial for spintronic applications with respect to ferromagnets due to the lower stray fields created by these materials. We extend this study to cover the case where the transition-metal atoms sitting at antisites are not identical to the ones in the perfect sites. In Cr-based compounds, the creation of Mn antisites keeps the half-metallic ferrimagnetic character produced also by the Cr antisites. In the case of VAs, Cr and Mn antisites keep the half-metallic character of VAs (contrary to V antisites) due to the larger exchange splitting exhibited by these atoms.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 320, Issues 3–4, February 2008, Pages 197–203
نویسندگان
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