Large magnetoresistance associated with large inverse magnetocaloric effect in Ni-Co-Mn-Sn alloys

Arup Ghosh () and Kalyan Mandal

The European Physical Journal B: Condensed Matter and Complex Systems, 2013, vol. 86, issue 9, 1-6

Abstract: Structural and magnetic transitions of Ni 47.5-x Co x Mn 37.5 Sn 15 (x = 0, 1, 2 and 3.5) alloys were confirmed and studied by magnetic and resistivity measurements. Though a large magnetic entropy change (Δ S M ) ~ 9.5 J/kg K was obtained for x = 3.5 due to a change of only 1.5 T magnetic field, hysteresis losses limited its refrigerant capacity to a significant extent. A maximum –69% magnetoresistance was obtained due to a structural transition in the same sample in presence of 8 T field. It was found that the same material can be used for practical applications within a wide range of temperature as it shows large magnetoresistance at remote temperatures far below from its structural transition point. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013

Keywords: Solid State and Materials (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1140/epjb/e2013-40489-0

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