Electric Resistivity and Hall Effect of Ni(Co)-Mn-Al Melt Spun Ribbons

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In the present work the influence of Co alloying on transport properties of Ni-Mn-Al melt-spun ribbons was investigated. Results of electrical resistivity measurements showed that Ni50Mn31Al19 and Ni45Co5Mn32Al18 samples exhibit a temperature hysteresis of the electrical resistivity which was attributed to a first order martensitic transformation while no hysteresis was observed in Ni40Co10Mn33Al17 sample. Measurements of the Hall effect indicated that the Co alloying leads to an increase of carrier mobility.

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65-68

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March 2016

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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