Large roomtemperature magnetocaloric effect with negligible magnetic hysteresis losses in Mn1−xVxCoGe alloys |
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| Authors: | SC Ma YX ZhengHC Xuan LJ ShenQQ Cao DH Wang ZC ZhongYW Du |
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| Institution: | a National Laboratory of Solid State Microstructures and Key Laboratory of Nanomaterials for Jiang Su Province, Department of Physics, Nanjing University, 210093 Nanjing, PR China
b School of Material Science and Engineering, Nanchang Hangkong University, 330063 Nanchang, PR China |
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| Abstract: | The magnetic and magnetocaloric properties have been investigated in a series of Mn1−xVxCoGe (x=0.01, 0.02, 0.03, and 0.05) alloys. The substitution of V for Mn reduces the structural transformation temperature of MnCoGe alloy effectively and results in a second-order magnetic transition in Mn0.95V0.05CoGe alloys. Large room temperature magnetocaloric effect and almost zero magnetic hysteresis losses are simultaneously achieved in the alloys with x=0.01, 0.02, and 0.03. The reasons for the negligible magnetic hysteresis losses and the potential application for the roomtemperature magnetic refrigeration are discussed. |
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| Keywords: | Room temperature Magnetocaloric effect Negligible magnetic hysteresis loss |
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