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Magnetic and magnetocaloric properties of perovskite manganite Pr0.55Sr0.45MnO3 |
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| Authors: | Jiyu Fan Li Pi Lei ZhangWei Tong Langsheng LingBo Hong Yangguang ShiWeichun Zhang Di LuYuheng Zhang |
| Institution: | a Department of Applied Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China b High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China c Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China d Department of Material Engineering, China Jiliang University, Hangzhou 310018, China |
| Abstract: | In this paper, we have studied the magnetic and magnetocaloric properties of the perovskite manganite Pr0.55Sr0.45MnO3. It shows a sharp paramagnetic-ferromagnetic phase transition at 291 K and possesses a moderate magnetic entropy change near room temperature. In addition, a large relative cooling power (143.64 J/kg) and a wide temperature range (84 K) have been found in this material. Compare with the Landau model, we find that the itinerant electrons mainly contribute the larger magnetic entropy change at paramagnetic region. |
| Keywords: | Perovskite manganites Magnetocaloric effect |
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