%A Ke Ya-Jiao (柯亚娇), Zhang Xiang-Qun (张向群), Ge Heng (葛恒), Ma Yue (马跃), Cheng Zhao-Hua (成昭华) %T Low field induced giant anisotropic magnetocaloric effect in DyFeO3 single crystal %0 Journal Article %D 2015 %J Chin. Phys. B %R 10.1088/1674-1056/24/3/037501 %P 37501-037501 %V 24 %N 3 %U {https://cpb.iphy.ac.cn/CN/abstract/article_117261.shtml} %8 2015-03-05 %X

We have investigated the anisotropic magnetocaloric effect and the rotating field magnetic entropy in DyFeO3 single crystal. A giant rotating field entropy change of -ΔSMR=16.62 J/kg·K was achieved from b axis to c axis in bc plane at 5 K for a low field change of 20 kOe. The large anisotropic magnetic entropy change is mainly accounted for the 4f electron of rare-earth Dy3+ ion. The large value of rotating field entropy change, together with large refrigeration capacity and negligible hysteresis, suggests that the multiferroic ferrite DyFeO3 singlecrystal could be a potential material for anisotropic magnetic refrigeration at low field, which can be realized in the practical application around liquid helium temperature region.