Half-Metallicity of (001) Film of Fe2CrSi
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概要
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On the basis of the electronic structures obtained by first-principles calculations, we have studied the half-metallicity of a (001) film of the Heusler compound Fe2CrSi, which is predicted to be a half-metallic ferromagnet in its bulk. The result shows that a film with a surface consisting of Si and Cr atoms holds a high spin polarization (nearly 100%) and that the atomic disorder between Cr and Si atoms reduces spin polarization, but that the film holds a comparatively high spin polarization of 75%. We also show that, in a film with a surface consisting of Fe atoms, spin polarization decreases drastically from that of the bulk.
- 2012-03-15
著者
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Ishida Shoji
Department Of Physics Faculty Of Science Kagoshima University
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Asano Setsuro
Institute For Solid State Physics The University Of Tokyo
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Asano Setsuro
Institute of Physics, College of Arts and Sciences, University of Tokyo, Meguro, Tokyo 153-0041, Japan
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FUJII Shinpei
Graduate School of Science and Engineering, Kagoshima University, Kagoshima 890-0065, Japan
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