期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 324, 期 2, 页码 135-139出版社
ELSEVIER
DOI: 10.1016/j.jmmm.2011.07.047
关键词
Room temperature; Magnetocaloric effect; Negligible magnetic hysteresis loss
资金
- National Natural Science Foundation of China [50701022, 50831006]
- Program for New Century Excellent Talents of China [NCET-08-0278]
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. (c) 2011 Elsevier B.V. All rights reserved.
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