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Abstract: The transport and magnetic properties of ferromagnetic shape memory alloy of nominal composition Ni46Mn41In13 are reported. The alloy undergoes martensitic phase transition (MPT) around 240 K. The region around this structural transition is found to be highly metastable and susceptible to the applied magnetic field. Giant negative magnetoresistance (? ?64% at 70 kOe) is observed in the vicinity of the thermally driven MPT. The existence of large inverse magnetocaloric effect around the MPT is also confirmed by the direct measurement using modulated ac field technique. The sample shows large exchange bias at low temperature. The role of Mn-Mn intersite antiferromagnetic correlation is discussed for the above magneto-functional behaviors.
Fuente: Journal of Alloys and Compounds, 2013, 578, 157-161
Publisher: Elsevier Ltd
Publication date: 25/11/2013
No. of pages: 5
Publication type: Article
DOI: 10.1016/j.jallcom.2013.04.074
ISSN: 0925-8388,1873-4669
Spanish project: MAT2009-13108-C02-01; BES-2010-036314
Publication Url: https://doi.org/10.1016/j.jallcom.2013.04.074
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PRAMANICK, S.
CHATTERJEE, S.
GIRI, S.
MAJUMDAR, S.
KOLEDOV, VÍCTOR V.
MASHIROV, A.
ALIEV, A.M.
BATDALOV. A.B.
HERNANDO GRANDE, BLANCA
ROSA, WAGNER DE OLIVEIRA DA
LORENA GONZALEZ LEGARRETA
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