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Annealing influence on the exchange-bias and magnetostructural properties in the Ni_(50.0)Mn_(36.5)Sn_(13.5) ribbon-shape alloy

机译:退火对Ni_(50.0)Mn_(36.5)SN_(36.5)带状合金中的交换 - 偏置和磁性结构性能的影响

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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_(50.0)Mn_(36.5)Sn_(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 HC diminishes with the increasing of the annealing temperature, but HE is not affected by the heat treatment.
机译:通过磁力测量,我们在10分钟内报告在10分钟内10分钟内的第923 k和1073 k和1073 k的影响。通过磁测量,HE_(36.5)SN_(36.5)HEUSLER合金带的NI_(50.0)MN_(36.5)的交换偏置效应。我们已经观察到,马氏体转化随着退火温度的增加而转变为更高的温度。此外,在现场冷却方案下执行的等温M个(H)磁滞回路显示出用于淬火和两个退火带的交换偏置效果,其表示在低温下存在铁磁 - 反铁磁性相互作用。特别是,我们观察到HC随着退火温度的增加而减小,但他不受热处理的影响。

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