کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8000411 | 1516274 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of partial substitution of silicon by other sp-valent elements on structure, magnetic properties and electrical resistivity of Co2FeSi Heusler alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The effect of partial substitution (50%) of Si by other sp-valent elements such as Al, Ga, Ge, In and Sn on structure, magnetic properties and electrical resistivity of full Heusler type Co2FeSi alloys was investigated. The results revealed that these alloys (except Sn substituted alloy) consist of mostly L21 ordered phase along with some B2 type disordered phase. The highest L21 ordering was seen in Co2FeSi0.5Ge0.5 alloy. The magnetization studies showed all alloys obey the Slater-Pauling rule at 4Â K except for Sn substituted alloy. However, at room temperature, only Ga, Ge and Al substituted alloys followed the Slater-Pauling rule. Electrical transport studies revealed the presence of half-metallic behavior at low temperatures in all alloys. However, half-metallicity was preserved to some extent at room temperature only in Ga and Ge substituted Co2FeSi alloys.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 619, 15 January 2015, Pages 177-185
Journal: Journal of Alloys and Compounds - Volume 619, 15 January 2015, Pages 177-185
نویسندگان
K. Srinivas, M. Manivel Raja, S.V. Kamat,