Martensitic transformation and shape memory effect in a ferromagnetic shape memory alloy: Mn2 NiGa

G. D. Liu, J. L. Chen, Z. H. Liu, X. F. Dai, G. H. Wu*, B. Zhang, X. X. Zhang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

168 Scopus citations

Abstract

Heusler alloy Mn2 NiGa has been developed by synthesizing a series of ferromagnetic shape memory alloys Mn25+x Ni50-x Ga25 (x=0-25). Mn2 NiGa exhibits a martensitic transformation around room temperature with a large thermal hysteresis up to 50 K and a lattice distortion as large as 21.3% and has a quite high Curie temperature of 588 K. The martensite shows a high-saturated field up to 2 T. The excellent two-way shape memory behavior with a strain of 1.7% was observed in the single crystal Mn2 NiGa. The magnetic-field-controlled effect created a total strain up to 4.0% and changed the sign of the shape deformation effectively.

Original languageEnglish (US)
Article number262504
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume87
Issue number26
DOIs
StatePublished - 2005
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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