کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1808953 1525180 2015 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Large low-field magnetic entropy changes in as-cast Hf0.83−xZrxTa0.17Fe2 compounds
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Large low-field magnetic entropy changes in as-cast Hf0.83−xZrxTa0.17Fe2 compounds
چکیده انگلیسی
Series of Hf0.83−xZrxTa0.17Fe2 (x=0, 0.1, 0.2, and 0.3) compounds have been prepared by an arc-melting method without further annealing. As-cast samples crystallize in single phase with hexagonal MgZn2-type structure, and exhibit a first-order transition from ferromagnetic to antiferromagnetic state for x<0.3. With the increase of Zr content (x<0.3), the transition shifts towards lower temperature with sharper magnetization change and enhanced magnetization. Field-induced metamagnetic transition from antiferromagnetic to ferromagnetic state was observed around the transition, giving rise to the large magnetocaloric effect. The adjustable transition temperature and large magnetocaloric effect make the as-cast Hf0.83−xZrxTa0.17Fe2 compounds potential candidate as magnetic refrigerants.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volumes 466–467, June 2015, Pages 86-89
نویسندگان
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