Observation of giant magnetocaloric effect in EuTi1-xCrxO3
Observation of giant magnetocaloric effect in EuTi1-xCrxO3
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EuTi1-xCrxO3 巨磁热效应的观察
DOI:
10.1016/j.jallcom.2015.07.176
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发表时间:
2015-11
期刊:
影响因子:
--
通讯作者:
Bao-Gen Shen
中科院分区:
文献类型:
--
作者:
Ji-Rong Sun;Ji-Rong Sun;Bao-Gen Shen;Bao-Gen Shen
The magnetic properties and magnetocaloric effect in EuTi 1− x Cr x O 3 (x= 0, 0.02, 0.04, 0.1) compounds are investigated. The magnetic ground state (AFM) of pure EuTiO 3 can be significantly changed to be FM with slight Cr-doping. A giant reversible MCE and large RC in EuTi 1− x Cr x O 3 compounds were observed. The value of− Δ S M max reaches to 40.3 J/kg K for EuTiO 3 under the magnetic field change of 5 T. Especially, under the magnetic field changes of 1 and 2 T, the values of− Δ S M max are evaluated to be 12.5 and 22.5 J/Kg K and the maximum values of RC are 64 and 127 J/kg, without magnetic and thermal hysteresis for EuTi 1− x Cr x O 3 system. Therefore, the giant reversible MCE and large RC make the EuTi 1− x Cr x O 3 compounds could be considered as a good candidate material for low-temperature and low-field magnetic refrigerant.
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通讯作者:
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