Author:
Zhang Hao-Lei ,Li Zhe ,Qiao Yan-Fei ,Cao Shi-Xun ,Zhang Jin-Cang ,Jing Chao ,
Abstract
The crystal structure and phase transition in Ni50-xCoxMn38Sn12（x=1, 2, 4, 6, 8） Heusle alloys were investigated by means of structure analysis and magnetism measurements. The results show that the doping of the Co atom affects neither the original structure of Ni-Mn-Sn Heusler alloys, nor the ferromagnetic interaction strengthens in the austenitic state. Furthermore, based on Maxwell equation, the magnetic entropy change （ΔSM） of three samples （x=2, 4, 6） has been calculated. A large magnetic entropy change of 37.09 J/kg K at about 320 K for a magnetic field change of 50 kOe is obtained in Ni48Co2Mn38Sn12 alloy.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Cited by
3 articles.
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