MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Magnetocrystalline Anisotropy in a Single Crystal Fe-Ni-Ga Ferromagnetic Shape Memory Alloy
Haruhiko MoritoAsaya FujitaKazuaki FukamichiTakuya OtaRyosuke KainumaKiyohito IshidaKatunari Oikawa
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2003 Volume 44 Issue 4 Pages 661-664

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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 14 M 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]14 M. 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.

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© 2003 The Japan Institute of Metals and Materials
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