Magnetostructural transition in NiCuCoMnGa alloys

doi:10.1088/1674-1056/22/8/088105

中国物理B ›› 2013, Vol. 22 ›› Issue (8): 88105-088105.doi: 10.1088/1674-1056/22/8/088105

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇下一篇

Magnetostructural transition in NiCuCoMnGa alloys

李盼盼, 王敬民, 蒋成保

Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191, China

收稿日期:2012-10-28 修回日期:2012-12-21 出版日期:2013-06-27 发布日期:2013-06-27
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 50925101, 512210163, and 51001004), the National Basic Research Program of China (973 Program) (Grant No. 2012CB619404), the Natural Science Foundation of Beijing (Grant No. 2132026), and the Fundamental Research Funds for Central 212 Universities (Grant No. YWF-13-T-RSC-025).

Magnetostructural transition in NiCuCoMnGa alloys

Li Pan-Pan (李盼盼), Wang Jing-Min (王敬民), Jiang Cheng-Bao (蒋成保)

Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191, China

Received:2012-10-28 Revised:2012-12-21 Online:2013-06-27 Published:2013-06-27
Contact: Wang Jing-Min, Jiang Cheng-Bao E-mail:jingmin@buaa.edu.cn; jiangcb@buaa.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 50925101, 512210163, and 51001004), the National Basic Research Program of China (973 Program) (Grant No. 2012CB619404), the Natural Science Foundation of Beijing (Grant No. 2132026), and the Fundamental Research Funds for Central 212 Universities (Grant No. YWF-13-T-RSC-025).

摘要/Abstract

摘要： The effects of the addition of Co on the martensitic transformation and Curie transition temperatures of polycrystalline Ni_46-xCu₄Co_xMn_33.5Ga_16.5 (x=0, 1, 3, 5) alloys are investigated. An abrupt decrease in the martensitic transformation temperature and an obvious increase in the Curie transition temperature of austenite (T_C^A) are observed when Co is doped in the NiCuMnGa alloy. As a result, the composition range for obtaining the magnetostructural transition is extended. Furthermore, the effect of a strong magnetic field on the magnetostructural transition is analyzed. This study offers a possible method to extend the composition range for obtaining magnetostructural transition in Heusler alloys.

关键词: magnetostructural transition, Heusler alloys, NiCuCoMnGa

Abstract: The effects of the addition of Co on the martensitic transformation and Curie transition temperatures of polycrystalline Ni_46-xCu₄Co_xMn_33.5Ga_16.5 (x=0, 1, 3, 5) alloys are investigated. An abrupt decrease in the martensitic transformation temperature and an obvious increase in the Curie transition temperature of austenite (T_C^A) are observed when Co is doped in the NiCuMnGa alloy. As a result, the composition range for obtaining the magnetostructural transition is extended. Furthermore, the effect of a strong magnetic field on the magnetostructural transition is analyzed. This study offers a possible method to extend the composition range for obtaining magnetostructural transition in Heusler alloys.

Key words: magnetostructural transition, Heusler alloys, NiCuCoMnGa

中图分类号: (Martensitic transformations)

81.30.Kf

61.66.Dk (Alloys )

李盼盼, 王敬民, 蒋成保. Magnetostructural transition in NiCuCoMnGa alloys[J]. 中国物理B, 2013, 22(8): 88105-088105.

Li Pan-Pan (李盼盼), Wang Jing-Min (王敬民), Jiang Cheng-Bao (蒋成保). Magnetostructural transition in NiCuCoMnGa alloys[J]. Chin. Phys. B, 2013, 22(8): 88105-088105.

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Magnetostructural transition in NiCuCoMnGa alloys

Magnetostructural transition in NiCuCoMnGa alloys

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