کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8154042 | 1524772 | 2018 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetic and magnetocaloric properties in Gd1âyPryNi2 compounds
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work, we report the magnetic and magnetocaloric properties of the Gd1âyPryNi2 compounds from both experimental and theoretical points of view. It is worth noting that this series shows a variety of magnetic arrangements depending on the Pr concentration, including paramagnetism, ferrimagnetism and ferromagnetism. Our experimental work consists of the systematic analysis of the magnetic properties of the compounds with yâ¯=â¯0.0, 0.25, 0.5, 0.75 and 1.0, which includes temperature and magnetic field dependence of the magnetization, heat capacity and isothermal entropy change obtained by isothermal magnetization curves. Also, we developed a model Hamiltonian, which takes into account the exchange interactions among Gd-Gd, Gd-Pr and Pr-Pr ions, the Zeeman interaction for both ions and the crystalline electrical field interaction for the Pr ions. We systematically investigated the magnetic properties of the series and obtained a good agreement when compared with our experimental data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 449, 1 March 2018, Pages 308-312
Journal: Journal of Magnetism and Magnetic Materials - Volume 449, 1 March 2018, Pages 308-312
نویسندگان
B.P. Alho, P.H.O. Lopes, P.O. Ribeiro, T.S.T. Alvarenga, E.P. Nóbrega, V.S.R. de Sousa, A.M.G. Carvalho, A. Caldas, J.C.G. Tedesco, A.A. Coelho, N.A. de Oliveira, P.J. von Ranke,