期刊
IEEE TRANSACTIONS ON MAGNETICS
卷 41, 期 10, 页码 2778-2780出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2005.854774
关键词
ferromagnetic materials; magnetic hysteresis; magnetic transitions
The magnetic and magnetocaloric properties of Mn(1.1)Fe(0.9)p(1-x)Ge(x) compounds with x = 0.20, 0.22, 0.23, 0.26, and 0.30 have been investigated. In the composition range x from 0.20 to 0.30, the compounds crystallize in the Fe2P-type hexagonal structure. The Curie temperature of the compounds strongly increases with increasing Ge contents. A history dependence of the magnetic phase transition is observed in this compound system. The optimum composition range and the temperature range of the Mn1.1Fe0.9P1-xGex compounds for magnetic refrigeration applications have been determined. In the composition range x from 0.20 to 0.23, the compounds exhibit large magnetic-entropy change in a low magnetic field.
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