Martensitic transformation and magnetic field-induced strain in Fe-Mn-Ga shape memory alloy

T. Omori, K. Watanabe, R. Y. Umetsu, R. Kainuma, K. Ishida

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78 Citations (Scopus)

Abstract

Martensitic and magnetic properties of Fe-Mn-Ga single and polycrystalline alloys were investigated. It was found that Fe-Mn-Ga alloys exhibit martensitic transformation from the paramagnetic L 21 Heusler parent phase to the ferromagnetic L 10 martensite phase. The martensitic transformation temperatures increased by about 20 K by the application of a magnetic field of 7 T, and a metamagnetic phase transition was observed. In addition, a magnetic field-induced strain of 0.6% associated with magnetic field-induced forward transformation was confirmed in an Fe43 Mn28 Ga29 single crystal.

Original languageEnglish
Article number082508
JournalApplied Physics Letters
Volume95
Issue number8
DOIs
Publication statusPublished - 2009 Sep 7

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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