Realization of magnetic field-induced reversible martensitic transformation in NiCoMnGa alloys

S. Y. Yu, Z. X. Cao, L. Ma, G. D. Liu, J. L. Chen, G. H. Wu*, B. Zhang, Xixiang Zhang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

143 Scopus citations

Abstract

Effect of a magnetic field on martensitic transformation in the NiCoMnGa alloys was investigated. A field-induced reversible martensitic transformation from the martensitic phase of low magnetization to the parent phase of high magnetization has been realized. The substitution of Co for Ni atoms has turned the magnetic ordering of the parent phase from partially antiferromagnetic to ferromagnetic, resulting in a large magnetization change across the transformation, which dramatically enhances the magnetic field driving force. The transformation temperature can be downshifted by magnetic field at a rate up to 14 KT in Ni37 Co13 Mn32 Ga18. Other mechanism details were also discussed.

Original languageEnglish (US)
Article number102507
JournalApplied Physics Letters
Volume91
Issue number10
DOIs
StatePublished - Sep 13 2007

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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