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

doi:10.2320/matertrans.44.661

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 journal › Article › peer-review

32 Citations (Scopus)

Abstract

In order to discuss the advent of the magnetic-field-induced strains for a single crystal Fe_22.0Ni_51.5Ga_26.5 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 language	English
Pages (from-to)	661-664
Number of pages	4
Journal	Materials Transactions
Volume	44
Issue number	4
DOIs	https://doi.org/10.2320/matertrans.44.661
Publication status	Published - 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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10.2320/matertrans.44.661

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title = "Magnetocrystalline anisotropy in a single crystal Fe-Ni-Ga ferromagnetic shape memory alloy",

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.",

keywords = "Fe-Ni-Ga alloy, Ferromagnetic shape memory alloy, Magnetic-field-induced strain, Magnetocrystalline anisotropy, Martensitic transformation",

author = "Haruhiko Morito and Asaya Fujita and Kazuaki Fukamichi and Takuya Ota and Ryosuke Kainuma and Kiyohito Ishida and Katunari Oikawa",

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AU - Morito, Haruhiko

AU - Fujita, Asaya

AU - Fukamichi, Kazuaki

AU - Ota, Takuya

AU - Kainuma, Ryosuke

AU - Ishida, Kiyohito

AU - Oikawa, Katunari

PY - 2003/4

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KW - Fe-Ni-Ga alloy

KW - Ferromagnetic shape memory alloy

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