کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8152676 | 1524755 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Magnetocaloric effect studying by means of theoretical models in Pr0.5Sr0.5MnO3 manganite
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Magnetocaloric effect studying by means of theoretical models in Pr0.5Sr0.5MnO3 manganite Magnetocaloric effect studying by means of theoretical models in Pr0.5Sr0.5MnO3 manganite](/preview/png/8152676.png)
چکیده انگلیسی
In this work, we have used many theoretical models to simulate the magnetocaloric effect (MCE) in the charge ordered Pr0.5Sr0.5MnO3 (PSMO) manganite. This sample undergoes a first order antiferromagnetic charge-ordered (AFM/CO) to a ferromagnetic (FM) transition at TCOâ¼165â¯K followed by a second order FM to paramagnetic (PM) transition at Curie temperature, TCâ¼255â¯K. The Mean-field theory and the Bean-Rodbell model are called to study deeply the MCE in FM-PM transition. Based on the mean-field theory, we proposed a numerical approach to study the evolution of magnetization versus temperature for the first order AFM/CO - FM transition. By using a phenomenological model, we have compared theoretical and experimental MCE for the above two transitions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 466, 15 November 2018, Pages 368-375
Journal: Journal of Magnetism and Magnetic Materials - Volume 466, 15 November 2018, Pages 368-375
نویسندگان
Mohamed Hsini, Sobhi Hcini, Sadok Zemni,