Martensitic transformation and phase diagram in ternary Co-V-Ga Heusler alloys

Xiao Xu, Akihide Nagashima, Makoto Nagasako, Toshihiro Omori, Takeshi Kanomata, Ryosuke Kainuma

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)


We report the martensitic transformation behavior in Co-V-Ga Heusler alloys. Thermoanalysis and thermomagnetization measurements were conducted to observe the martensitic transformation. By using a transmission electron microscope and an in situ X-ray diffractometer, martensitic transformation was found to occur from the L21 Heusler parent phase to the D022 martensite phase. Phase diagrams were determined for two pseudo-binary sections where martensitic transformation was detected. Magnetic properties, including the Curie temperatures and spontaneous magnetization of the parent phase, were also investigated. The magnetic properties showing behaviors different from those of NiMn-based alloys were found.

Original languageEnglish
Article number121906
JournalApplied Physics Letters
Issue number12
Publication statusPublished - 2017 Mar 20


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