Electronic and Magnetic Properties of Co₂CrGa_1−x Si _x Heusler Alloys

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• 作者：I. E. Yahiaoui ; A. Lazreg ; Z. Dridi…
• 关键词：Half ; metallic ; Spin ; polarization ; Heusler alloys
• 刊名：Journal of Superconductivity and Novel Magnetism
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：30
• 期：2
• 页码：421-424
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Strongly Correlated Systems, Superconductivity; Magnetism, Magnetic Materials; Condensed Matter Physics; Characterization and Evaluation of Materials;
• 出版者：Springer US
• ISSN：1557-1947
• 卷排序：30

文摘

First-principles calculations within full-potential linear-augmented plane-wave method using the generalized gradient approximation were carried out for the electronic and magnetic properties of the Co₂CrGa_1−xSi_x Heusler alloys. The electronic structure calculations show a conservation of the minority spin gap supporting the half-metallic character of the Co₂CrGa_1−xSi_x alloys. The substitution of Ga by Si results in linear increasing of total magnetic moment as silicon concentration increases following the Slater–Pauling rule that is in agreement with experimental data.