Abstract
The magnetic properties and magnetocaloric effect of Eu1−xSrxTiO3 (x=0–0.1) compounds are investigated. With slight Sr-doping, the ferromagnetic (FM) coupling significantly increased and FM exchange is dominant in the delicate balance. A giant reversible magnetocaloric effect (MCE) and large refrigerant capacity (RC) for Eu1−xSrxTiO3 compounds were observed. The values of −ΔSMmax are evaluated to be around 10J/kg K under a magnetic field change of 1T and 21J/kg K under a magnetic field change of 2T, respectively. But, the values of RC are increased with the more Eu in EuTiO3 to be substituted by Sr. Therefore, the giant reversible MCE and large RC make the Eu1−xSrxTiO3 compound a good candidate for magnetic refrigerant working at low-temperature and low-field.
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