Large reversible magnetocaloric effect in Ni-Mn-In-Co

被引：185

作者：

Gottschall, Tino ^{[1
]}

Skokov, Konstantin P. ^{[1
]}

Frincu, Bianca ^{[1
]}

Gutfleisch, Oliver ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Inst Mat Wissensch, D-64287 Darmstadt, Germany

来源：

APPLIED PHYSICS LETTERS | 2015年 / 106卷 / 02期

关键词：

MAGNETIC REFRIGERANTS; ALLOYS; TRANSITION;

D O I：

10.1063/1.4905371

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the high irreversible adiabatic temperature change of -8 K in a magnetic field change of 1.95 T in the Heusler compound Ni45.7Mn36.6In13.5Co4.2 showing a first-order magnetostructural transition. Due to the large thermal hysteresis of 10 K, this high Delta T-ad cannot be obtained in a cyclic way but still the reversible magnetocaloric effect amounts to -3K-an unexpectedly high value which compares to the Delta T-ad of La(Fe,Si,Co)(13). In order to reveal the nature of this high reversible magnetocaloric effect, in-situ temperature dependent optical microscopy of minor loops of thermal hysteresis has been done. (C) 2015 AIP Publishing LLC.

引用

页数：4

共 19 条

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