Abstract We report the effect of Fe on the martensitic transitions in Ni47Mn40-xFexIn13 (x = 1 and 2) alloys and associated magnetocaloric effect. Structural and magnetic transitions are observed in x = 1 and 2 alloys. The martensitic transition shifts to low temperature with the increase of Fe concentration. The maximum positive entropy change (ΔSM) with quite large magnitude of 22 Jkg−1K−1 (x = 1) and 51.2 Jkg-1K-1 (x = 2) are observed for a field change of 50 kOe. Substitution of Fe enhances the magnetization as well as increases the ΔSM more than a twice in the x = 2 system.

中文翻译：

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Ni 47 Mn 40-x Fe x In 13 ( x = 1, 2) Heusler 合金中增强的磁热效应和磁性能

摘要 我们报告了 Fe 对 Ni47Mn40-xFexIn13 (x = 1 和 2) 合金中马氏体转变的影响以及相关的磁热效应。在 x = 1 和 2 合金中观察到结构和磁性转变。随着Fe浓度的增加，马氏体转变向低温转变。对于 50 kOe 的场变化，观察到具有相当大的 22 Jkg-1K-1 (x = 1) 和 51.2 Jkg-1K-1 (x = 2) 的最大正熵变化 (ΔSM)。在 x = 2 系统中，Fe 的替代增强了磁化强度并将 ΔSM 增加了两倍以上。