کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1812763 1025623 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Magnetocaloric effect in UNiGa compound with the multiple magnetic phase transitions
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Magnetocaloric effect in UNiGa compound with the multiple magnetic phase transitions
چکیده انگلیسی

The magnetocaloric effect (MCE) in the UNiGa compound has been studied using the dc magnetization measurement technique. This system shows normal and inverse MCEs at low field around the paramagnetic to ferrimagnetic transition temperature (38.4 K), and the ferrimagnetic to antiferromagnetic transition temperature (34.5 K), respectively. At higher fields, the inverse MCE becomes very weak, which could be explained due to the presence of a field-induced metamagnetic phase transition. The maximum value of the magnetic entropy change -ΔSM-ΔSM, for Δμ0H=5T, has been found to be 3.56Jkg-1K-1 at ∼37.2K with a relative cooling power of 22.5Jkg-1.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 405, Issue 2, 15 January 2010, Pages 686–689
نویسندگان
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