Magnetic and martensitic transformations of NiMnX(X=In,Sn,Sb) ferromagnetic shape memory alloys
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- Y. Sutou
- Biomedical Engineering Research Organization, Tohoku University , 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
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- Y. Imano
- Department of Materials Science, Graduate School of Engineering, Tohoku University , Aoba-yama 02, Sendai 980-8579, Japan
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- N. Koeda
- Department of Materials Science, Graduate School of Engineering, Tohoku University , Aoba-yama 02, Sendai 980-8579, Japan
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- T. Omori
- Department of Materials Science, Graduate School of Engineering, Tohoku University , Aoba-yama 02, Sendai 980-8579, Japan
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- R. Kainuma
- Department of Materials Science, Graduate School of Engineering, Tohoku University , Aoba-yama 02, Sendai 980-8579, Japan
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- K. Ishida
- Department of Materials Science, Graduate School of Engineering, Tohoku University , Aoba-yama 02, Sendai 980-8579, Japan
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- K. Oikawa
- National Institute of Advanced Industrial Science and Technology , 4-2-1 Nigatake, Miyagino-ku, Sendai 983-8551, Japan
抄録
<jats:p>Martensitic and magnetic transformations of the Heusler Ni50Mn50−yXy (X=In, Sn and Sb) alloys were investigated by differential scanning calorimetry measurement and the vibrating sample magnetometry technique. In all these alloy systems, the austenite phase with the ferromagnetic state was transformed into the martensite phase, which means that these Heusler alloys have potential as Ga-free ferromagnetic shape memory alloys (FSMAs). Furthermore, multiple martensitic transformations, such as two- or three-step martensitic transformations, occur in all these alloy systems. It was confirmed by transmission electron microscopy observation that the crystal structure of the martensite phase is an orthorhombic four-layered structure which has not been reported in other FSMAs. Therefore, the present Ga-free FSMAs have the great possibility of the appearance of a large magnetic-field-induced strain.</jats:p>
収録刊行物
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- Applied Physics Letters
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Applied Physics Letters 85 (19), 4358-4360, 2004-11-08
AIP Publishing
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詳細情報 詳細情報について
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- CRID
- 1362825894443607296
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- NII論文ID
- 30015811717
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- ISSN
- 10773118
- 00036951
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- データソース種別
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