First-Order Phase Transition and Magnetocaloric Effect of MnFeP0.63Ge0.12Si0.25 Compound

Gao Feng Wang; Zeng Ru Zhao; Xiao Bin Zhang; Xue Feng Zhang

doi:10.4028/www.scientific.net/AMR.1053.37

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1053First-Order Phase Transition and Magnetocaloric...

First-Order Phase Transition and Magnetocaloric Effect of MnFeP_0.63Ge_0.12Si_0.25 Compound

Abstract:

In this paper, the magnetic phase transition and magnetocaloric effect have been investigated in the Fe₂P-type MnFeP_0.63Ge_0.12Si_0.25 compound. The X-ray diffraction patterns measured at different temperatures indicate that the crystal structure remains and the lattice parameters change sharply near the transition temperature when a phase transition takes place. The isofield magnetization curves on heating and cooling and the Arrott plots reveal that the nature of the transition is first order. The characteristic of giant magnetocaloric effect results from the field-induced first-order metamagnetic phase transition, which makes the compound having potential applications in magnetic refrigeration.

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Advanced Materials Research (Volume 1053)

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37-40

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1053.37

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Online since:

October 2014

Authors:

Gao Feng Wang, Zeng Ru Zhao, Xiao Bin Zhang, Xue Feng Zhang

Keywords:

First-Order Phase Transition, Magnetic Refrigeration, Magnetocaloric Effect, MnFeP_0.63Ge_0.12Si_0.25 Compound

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