کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1800921 1024551 2010 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Magnetocaloric effect in ferromagnetic and ferrimagnetic systems under first and second order phase transition
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Magnetocaloric effect in ferromagnetic and ferrimagnetic systems under first and second order phase transition
چکیده انگلیسی

In this work we present a model to describe the magnetocaloric effect (MCE) in ferrimagnetic arrangements. Our model takes into account the magnetoelastic interactions in the two coupled magnetic sublattices, which can lead to the onset of the first order magnetic phase transition and the giant-MCE. Several profiles of the MCE, such as: the inverse- and giant-MCE were systematically studied. Application of the model to the ferromagnetic compounds GdAl2, Gd5(Ge1.72Si2.28), Gd5(Ge2Si2), and to the ferrimagnetic compound Y3Fe5O12 was performed, showing a good agreement with the experimental data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 322, Issue 1, January 2010, Pages 84–87
نویسندگان
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