کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7886535 1509785 2018 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cryogenic magnetic properties in the pyrochlore RE2TiMnO7 (RE = Dy and Ho) compounds
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Cryogenic magnetic properties in the pyrochlore RE2TiMnO7 (RE = Dy and Ho) compounds
چکیده انگلیسی
Pyrochlore RE2TiMnO7 (RE = Dy and Ho) compounds were synthesized using a ceramic method, and their crystal structures, microstructures, and cryogenic magnetic properties were determined. Dy2TiMnO7 and Ho2TiMnO7 compounds belong to the Fd-3m space group with a cubic pyrochlore structure and show a considerable reversible magnetocaloric effect (MCE) in the vicinity of the second-order ferromagnetic-paramagnetic (FM-PM) phase transition at the Curie temperature (TC) of 7.6 and 7.5 K, respectively. The obtained maximal values of magnetic entropy change (-ΔSMmax) for Dy2TiMnO7 and Ho2TiMnO7 are 12.50 and 13.95 J/kg K under a magnetic field change (ΔH) of 0-7 T, respectively. Correspondingly, the relative cooling power (RCP) values reach 530.3 and 573.2 J/kg, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 13, September 2018, Pages 15681-15685
نویسندگان
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