Reversibility of magnetostructural transition and associated magnetocaloric effect in Ni-Mn-In-Co

被引：116

作者：

Liu, Jian ^{[1
]}

Scheerbaum, Nils ^{[1
]}

Lyubina, Julia ^{[1
]}

Gutfleisch, Oliver ^{[1
]}

机构：

[1] IFW Dresden, Inst Met Mat, D-01171 Dresden, Germany

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 10期

关键词：

D O I：

10.1063/1.2981210

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

By analyzing isothermal magnetization curves under magnetic field cycling, the reversibility of the magnetostructural transition was investigated in Ni-Mn-In-Co in form of bulk sample and melt-spun ribbons. The hysteresis of thermally/magnetically induced martensitic transformation plays an important role in the reversibility of the magnetostructural transition. In ribbons with a large hysteresis of 18 K, residual field-induced austenite is present after removing the magnetic field, while, in the bulk sample, the magnetostructural transition is reversible at moderate temperatures due to a relatively smaller hysteresis of 8 K. Additionally, the magnetocaloric effect strongly depends on the sample history due to the occurrence of the irreversible magnetostructural transition, especially for the ribbons. (C) 2008 American Institute of Physics.

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