%0 Journal Article
%T Exchange Bias and Inverse Magnetocaloric Effect in Co and Mn Co-Doped Ni2MnGa Shape Memory Alloy
%A Baomin Wang
%A Yong Liu
%J Metals
%D 2013
%I MDPI AG
%R 10.3390/met3010069
%X Exchange bias effect observed in the Ni 1.68Co 0.32Mn 1.20Ga 0.80 alloy confirms the coexistence of antiferromagnetic and ferromagnetic phases in the martensite phase. A large inverse magnetocaloric effect has been observed within the martensitic transformation temperature range, which is originated from modified magnetic order through magnetic-field-induced phase transformation from partially antiferromagnetic martensite to ferromagnetic austenite. The magnetic entropy change is 16.2 J kg £¿1 K £¿1 at 232 K under ¦¤H = 60 kOe, with the net refrigerant capacity of 68 J kg £¿1. These properties indicate Co and Mn co-doped Ni 2MnGa alloy is a multifunctional material potentially suitable for magnetic refrigeration and spintronics applications.
%K shape memory alloy
%K exchange bias
%K inverse magnetocaloric effect
%K Ni-Mn-Ga
%K martensitic transformation
%U http://www.mdpi.com/2075-4701/3/1/69