Abstract
A giant reversible MCE and large RC in EuTiO3 compound were observed. Under the magnetic field changes of 5T, the maximum value of −ΔSM is evaluated to be 40.4J/kg K, and the value of RC is 328J/kg in EuTiO3 compound. Especially, for the magnetic field changes of 1 and 2T, the large values of −ΔSM are 11 and 22.3J/Kg K without magnetic and thermal hysteresis are also obtained, respectively. The giant MCE is attributed to field-induced AFM-FM transition and FM-PM transition. Therefore, the giant reversible MCE and large RC make the EuTiO3 compounds could be considered as a good candidate material for low-temperature and low-field magnetic refrigerant.
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