Degradation of the Magnetocaloric Effect in Ni49.3Mn40.4In10.3 in a Cyclic Magnetic Field

被引：13

作者：

Aliev, A. M. ^{[1
]}

Batdalov, A. B. ^{[1
]}

Khanov, L. N. ^{[1
]}

Mashirov, A. V. ^{[2
]}

Dil'mieva, E. T. ^{[2
]}

Koledov, V. V. ^{[2
]}

Shavrov, V. G. ^{[2
]}

机构：

[1] Dagestan Fed Res Ctr, Amirkhanov Inst Phys, Makhachkala, Russia

[2] Russian Acad Sci, Kotelnikov Inst Radio Engn & Elect, Moscow, Russia

来源：

PHYSICS OF THE SOLID STATE | 2020年 / 62卷 / 05期

基金：

俄罗斯科学基金会;

关键词：

magnetocaloric effect; Heusler alloys; cyclic magnetic fields; degradation; magnetic cooling;

D O I：

10.1134/S1063783420050030

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The direct measurements of the magnetocaloric effect Delta T-ad in the Heusler alloy Ni49.3Mn40.4In10.3 have been carried out in cyclic magnetic fields with amplitudes to 8 T. The maximum values of the magnetocaloric effect are 5.29 K in the martensite-austenite transition region and 3.39 K in the region of the magnetic phase transition in the austenite phase. A long-term action of a cyclic magnetic field is shown to lead to a marked decrease in the value of the magnetocaloric effect in the region of the magnetostructural martensite-austenite transition. The initial properties are recovered after the complete transition of the sample to the austenite phase. The phenomenon observed in this study restricts the application of these materials in the magnetic cooling technology.

引用

页码：837 / 840

页数：4

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