Magnetocrystalline anisotropy in a single crystal Fe-Ni-Ga ferromagnetic shape memory alloy

Haruhiko Morito, Asaya Fujita, Kazuaki Fukamichi, Takuya Ota, Ryosuke Kainuma, Kiyohito Ishida, Katunari Oikawa

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

In order to discuss the advent of the magnetic-field-induced strains for a single crystal Fe22.0Ni51.5Ga26.5 shape memory alloy, the magnetic easy axis in the 14M martensite phase and the magnetocrystalline anisotropy constant K have been investigated. From the data on the spontaneous thermal expansion and the magnetization curves, the magnetic easy axis of the 14 M martensite phase was determined to be the [010]14M. The value of K in the martensite phase was estimated to be 1.3 × 105 J/m3, implying to exhibit a large value of the magnetic-field-induced strain.

Original languageEnglish
Pages (from-to)661-664
Number of pages4
JournalMaterials Transactions
Volume44
Issue number4
DOIs
Publication statusPublished - 2003 Apr

Keywords

  • Fe-Ni-Ga alloy
  • Ferromagnetic shape memory alloy
  • Magnetic-field-induced strain
  • Magnetocrystalline anisotropy
  • Martensitic transformation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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