Premium
Large Magnetocaloric Effect and Magnetoresistance in Fe and Co Co‐Doped Ni‐Mn‐Al Heusler Alloys
Author(s) -
Wu Yafei,
Xuan Haicheng,
Agarwal Sandeep,
Xu Yuekui,
Zhang Tuo,
Feng Lin,
Li Hui,
Han Peide,
Zhang Chengliang,
Wang Dunhui,
Chen Fenghua,
Du Youwei
Publication year - 2018
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201700843
Subject(s) - magnetic refrigeration , materials science , magnetoresistance , austenite , diffusionless transformation , ferromagnetism , alloy , martensite , magnetic shape memory alloy , arc melting , condensed matter physics , metallurgy , phase (matter) , giant magnetoresistance , magnetic field , magnetization , microstructure , magnetic domain , chemistry , physics , organic chemistry , quantum mechanics
The Ni 40 Co 10− x Fe x Mn 33 Al 17 ( x = 4, 6, 8) alloys are prepared by arc‐melting method. The crystallographic structure, magnetic and magnetoresistance properties are systematically studied. The large magnetic change is obtained across the martensitic transformation from the ferromagnetic austenite phase to weak‐magnetic martensite phase. With the increase in Fe/Co ratio, the martensite transformation temperature shifts to the lower temperature. The large values of magnetoresistance of 33.3, 25.7, and 13.1% are achieved at the field of 3 T for x = 4, x = 6, and x = 8 alloys around the martensitic transformation, respectively. These results indicate that Ni‐Fe‐Co‐Mn‐Al alloy provides the motive power for further research in practical applications.