Annealing Influence on the Exchange-Bias and Magnetostructural Properties in the Ni50.0Mn36.5Sn13.5 Ribbon-Shape Alloy

L. González-Legarreta; M. Ipatov; D. González-Alonso; Alexander P. Kamantsev; Victor Koledov; Vladimir G. Shavrov; B. Hernando

doi:10.4028/www.scientific.net/SSP.233-234.179

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HomeSolid State PhenomenaSolid State Phenomena Vols. 233-234Annealing Influence on the Exchange-Bias and...

Annealing Influence on the Exchange-Bias and Magnetostructural Properties in the Ni_50.0Mn_36.5Sn_13.5 Ribbon-Shape Alloy

Abstract:

We report on the influence of short annealing treatments at 923 K and 1073 K during 10min on both martensitic transformation and exchange bias effect for the Ni_50.0Mn_36.5Sn_13.5 Heusler alloy ribbon by means of magnetic measurements. We have observed that the martensitic transformation is shifted towards higher temperatures with increasing annealing temperature. Furthermore, isothermal M(H) hysteresis loops performed under field-cooling protocol show an exchange bias effect for as-quenched and two annealed ribbons, which indicates the existence of ferromagnetic-antiferromagnetic interactions at low temperatures. In particular, we observe that H_C diminishes with the increasing of the annealing temperature, but H_E is not affected by the heat treatment.

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Solid State Phenomena (Volumes 233-234)

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179-182

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.233-234.179

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July 2015

Authors:

L. González-Legarreta*, M. Ipatov, D. González-Alonso, Alexander P. Kamantsev, Victor Koledov, Vladimir G. Shavrov, B. Hernando

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Exchange-Bias, Heusler Alloys, Martensitic Transformation (MT), Ni-Mn-Sn

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