magnetocaloric effect and its modulation by electric field in La0.325Pr0.3Ca0.375MnO3 film grown on PMN-PT

POSTER

Abstract

We have investigated the magnetocaloric effect(MCE) and its modulation by electric field in La0.325Pr0.3Ca0.375MnO3 (LPCMO) films epitaxially grown on (011)-oriented PMN-PT substrates. As a typical perovskite manganite with phase separation, the LPCMO bulk shows a considerable MCE, but the MCE of the LPCMO films have never been investigated. We found that the LPCMO films exhibit an inverse magnetic entropy change below 25K and an normal magnetic entropy change above 25K over a wide temperature range. The evaluated refrigeration capacity of 0-5T in the present film is about 443J/kg, which is larger than that of other films such as Ni-Mn-Sn film. A modulation of magnetization by electric field has been observed in the temeprature dependent and magnetic field dependent curves. As a result, enhanced magnetic entropy change and refrigeration capacity by about 4% under an electric field of 6 kV/cm has been demonstrated.

Presenters

  • Kaiming Qiao

    State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, the institute of physics, Institute of Physics, Chinese Academy of Scienes

Authors

  • Kaiming Qiao

    State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, the institute of physics, Institute of Physics, Chinese Academy of Scienes

  • Hongrui Zhang

    Institute of Physics, Chinese Academy of Sciences, State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, the institute of physics, Institute of Physics, Chinese Academy of Scienes

  • Fengxia Hu

    State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, the institute of physics, Institute of Physics, Chinese Academy of Scienes

  • Jirong Sun

    Institute of Physics, Chinese Academy of Sciences, State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, the institute of physics, Institute of Physics, Chinese Academy of Scienes

  • Baogen Shen

    State Key Laboratory of Magnetism, Institute of Physics, Chinese Academy of Sciences, State Key Laboratory of Magnetism, Institute of Physics,Chinese Academy of Sciences.School of Physical Sciences, University of Chinese Academy of Sciences, the institute of physics, Institute of Physics, Chinese Academy of Scienes