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Effect of magnetic field on martensitic transition of Ni46Mn41In13 Heusler alloy

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9 Author(s)
Oikawa, K. ; Department of Materials Science, Graduate School of Engineering, Tohoku University, 6-6-11 Aoba-yama, Sendai 980-8579, Japan ; Ito, W. ; Imano, Y. ; Sutou, Y.
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Magnetic and martensitic transition behaviors of a Ni46Mn41In13 Heusler alloy were investigated by differential scanning calorimetry and vibrating sample magnetometry. A unique martensitic transition from the ferromagnetic austenite phase to the antiferromagneticlike martensite phase was detected and magnetic-field-induced “reverse” transition was confirmed in a high magnetic field. In addition, a large positive magnetic entropy change, which reached 13 J/kg K at 9 T, was observed to accompany reverse martensitic transition. This alloy shows promise as a metamagnetic shape memory alloy with magnetic-field-induced shape memory effect and as a magnetocaloric material.

Published in:
Applied Physics Letters  (Volume:88 ,  Issue: 12 )

Date of Publication: Mar 2006

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