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arXiv · 1211.6815

Phase diagram, ferromagnetic martensitic transformation and magnetoresponsive properties of Fe-doped MnCoGe alloys

G. J. Li·E. K. Liu·H. G. Zhang·Y. J. Zhang·J. L. Chen·W. H. Wang·H. W. Zhang·G. H. Wu·S. Y. Yu
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Abstract

The crystal structure and magnetoresponsive properties of Fe-doped MnCoGe alloys have been investigated using x-ray diffraction (XRD) and magnetic measurements. By alloying the Fe-containing isostructure compounds into MnCoGe, a magnetostructural transition from paramagnetic austenite to ferromagnetic martensite with large magnetization difference can be realized in a temperature window between the Curie temperatures of the austenite and martensite, resulting in magnetic-field-induced martensitic transformations and large magnetic-entropy changes. A structural and magnetic phase diagram of Fe-doped MnCoGe alloys has been proposed.

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G. J. Li, E. K. Liu, H. G. Zhang, Y. J. Zhang, J. L. Chen, W. H. Wang, H. W. Zhang, G. H. Wu, S. Y. Yu. 2012-11-29. Phase diagram, ferromagnetic martensitic transformation and magnetoresponsive properties of Fe-doped MnCoGe alloys. https://doi.org/10.1016/j.jmmm.2012.12.001

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