Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8152676 | Journal of Magnetism and Magnetic Materials | 2018 | 8 Pages |
Abstract
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.
Related Topics
Physical Sciences and Engineering
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Condensed Matter Physics
Authors
Mohamed Hsini, Sobhi Hcini, Sadok Zemni,