TITLE

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

AUTHOR(S)
Omori, T.; Watanabe, K.; Umetsu, R. Y.; Kainuma, R.; Ishida, K.
PUB. DATE
August 2009
SOURCE
Applied Physics Letters;8/24/2009, Vol. 95 Issue 8, p082508
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
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 L21 Heusler parent phase to the ferromagnetic L10 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 Fe43Mn28Ga29 single crystal.
ACCESSION #
43944851

 

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