Colossal magnetocaloric effect in Ni-Co-Mn-In alloys induced by electron irradiation
Colossal magnetocaloric effect in Ni-Co-Mn-In alloys induced by electron irradiation
复制标题
电子辐照引起的 Ni-Co-Mn-In 合金中的巨大磁热效应
DOI：
10.1016/j.mtener.2020.100533
复制
发表时间：
2020
影响因子：
9.3
通讯作者：
Cai W.
中科院分区：
文献类型：
--
作者：
Sun S.;Qin H.;Wang H.;Ning R.;Zhao Y.;Zhu J.;Gao Z.;Cong D.;Wang Y.;Cai W.
Magnetocaloric materials have shown huge potential for magnetic refrigeration but fail meeting the application standard because of the low magnetic entropy change Delta S-M. In this work, high-energy electron irradiation is used to enlarge the magnetization difference Delta M in the inverse martensitic transition for Ni-Co-Mn-In alloys, which is mainly attributed to the variations of the short-range atomic arrangement and electronic structure. As a result, the Delta S-M can reach up to 62.17 J/(kgK) only with a small magnetic field of 3 T. Even compared with the Delta S-M of other works measured under 5 T magnetic field, this value is much superior and can be further improved up to 136.16 J/(kgK) with increasing the magnetic field to 7 T. Such high Delta S-M could improve the attractiveness of the material for the actual application. (C) 2020 Elsevier Ltd. All rights reserved.
