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Tuning Magnetocaloric Properties for La1-xSrxCoO3
Ahmed E.M.1, Alamri H.R.2, Elghnam S.M.3, Eldarawi O.4, Tawfik T.E.4, Mahmoud A.M.4, Elwan S.E.5, Hemeda O.M.6, Hamad M.A.7, Hussein G.A.5
1Department of Physics, College of Science, Taif University, P.O. Box Taif,, Saudi Arabia
2Physics Department, Aljamoum University College, Umm Al-Qura University, Makkah, Saudi Arabia
3Physics Department, Faculty of Science, Alexandria University, Alexandria, Egypt
4Basic Science Department, Higher Institute of Engineering and Technology, King Marriott, Alexandria, Egypt
5Department of Communication and Electronics, Higher Institute of Engineering and Technology, King Marriott, Alexandria, Egypt
6Physics Department, Faculty of Science, Tanta University, Tanta, Egypt
7Basic Science Department, Higher Institute of Engineering and Technology, Alexandria, Egypt
Email: m_hamad76@yahoo.com
Поступила в редакцию: 16 марта 2021 г.
Выставление онлайн: 9 июля 2021 г.

Low magnetic field magnetocaloric (MC) properties of La1-xSrxCoO3 (x=0.3 and 0.5) near phase transition from a ferromagnetic to a paramagnetic state were investigated. It is shown that the change of Sr content allows MC effect in La1-xSrxCoO3 to be tunable, which is more practical for construction of MC refrigeration. MC properties of the x=0.5 sample are significantly greater than that of the x=0.3 one. Furthermore, the results show that MC properties of La1-xSrxCoO3 samples are significantly larger, and comparable with some MC properties of many materials like Gd1-xCaxBaCo2O5.5 and Ge0.95Mn0.05. Keywords: magnetocaloric effect, La1-xSrxCoO3, magnetic entropy change.

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