Magnetoresistance and magnetocaloric properties involving strong metamagnetic behavior in Fe-doped Ni45(Co1-xFex)5Mn36.6In13.4 alloys

被引:50
作者
Chen, L. [1 ,2 ]
Hu, F. X. [1 ]
Wang, J. [1 ]
Bao, L. F. [1 ]
Sun, J. R. [1 ]
Shen, B. G. [1 ]
Yin, J. H. [2 ]
Pan, L. Q. [2 ]
机构
[1] Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, Beijing 100190, Peoples R China
[2] Univ Sci & Technol Beijing, Dept Phys, Beijing 100083, Peoples R China
基金
中国国家自然科学基金;
关键词
PHASE-TRANSFORMATION; RIBBONS; CO;
D O I
10.1063/1.4732525
中图分类号
O59 [应用物理学];
学科分类号
摘要
Here, we report the co-substitution of Fe and Co for Ni atoms on metamagnetic behavior, martensitic transformation, and transport and magnetocaloric properties in Ni-45(Co1-xFex)(5)Mn36.6In13.4 (x = 0 similar to 0.05) alloys. It is found that the introduction of Fe atoms stabilizes martensitic phase and shifts martensitic temperature (T-M) to higher temperature. Meanwhile, the Curie temperature T-C of parent phase notably decreases. Upon Fe doping, the low magnetization of martensitic phase keeps nearly unchanged while the magnetization of parent phase slightly decreases. As a result, the Fe-doped samples maintain strong metamagnetic behavior and show great MR and MCE in an extended temperature range around room temperature. The hysteresis loss is reduced upon Fe-doping, which leads to an enhancement of effective RC by 15%. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4732525]
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页数:4
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