Tailoring the magnetostructural transition and magnetocaloric properties around room temperature: In-doped Ni-Mn-Ga alloys
Tailoring the magnetostructural transition and magnetocaloric properties around room temperature: In-doped Ni-Mn-Ga alloys
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定制室温附近的磁结构转变和磁热特性:In 掺杂 Ni-Mn-Ga 合金
DOI:
10.1063/1.4895929
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发表时间:
2014-09
影响因子:
4
通讯作者:
Huibin Xu
中科院分区:
文献类型:
--
作者:
Linfang Zhang;Jingmin Wang;Hui Hua;Chengbao Jiang;Huibin Xu
Some off-stoichiometric Ni-Mn-Ga alloys undergo a coupled magnetostructural transition from ferromagnetic martensite to paramagnetic austenite, giving rise to the large magnetocaloric effect. However, the magnetostructural transitions of Ni-Mn-Ga alloys generally take place at temperatures higher than room temperature. Here, we report that by the partial substitution of In for Ga, the paramagnetic austenite phase is well stabilized, and the magnetostructural transition can be tailored around room temperature. Sizable magnetic entropy change and adiabatic temperature change were induced by magnetic field change in the vicinity of the magnetostructural transition of the In-doped Ni-Mn-Ga alloys.
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