MAGNETOCALORIC EFFECT AND PHASE TRANSITION IN Ni53.6Mn23.2Ga23.2 HEUSLER ALLOY

被引：0

作者：

Zhang, Z. ^{[1
]}

Long, Y. ^{[1
]}

Wen, D. ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

1ST INTERNATIONAL CONFERENCE ON MAGNETIC REFRIGERATION AT ROOM TEMPERATURE | 2005年

关键词：

D O I：

暂无

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The magnetic and structural phase transition (SPT) and the magnetic entropy change in the Ni53.6Mn23.2Ga23.2 Heusler alloy was experimentally investigated. We observed a plateau in the peak of the magnetic entropy change. The distance between the two peaks is 4 K. The two peaks are separately caused by SPT and a magnetic transition. With evidence the magnetic entropy change plateau is also shown by the ac-susceptibility which shows that the austenite Curie temperature is slightly lower than the martensitic transition temperature. This phenomenon seems to provide a possibility to extend the peak of the magnetic entropy change.

引用

页码：221 / 225

页数：5

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