Magnetoelectricity in Epitaxial Manganite/Piezo Thin Films

POSTER

Abstract

Multilayer thin films of La0.7Ca0.3MnO3/BaHf0.045Zr0.045Ti0.91O3 were grown on [100] Nb-doped SrTiO3 substrates by pulsed laser deposition using KrF excimer. Two multilayer configurations: LCMO/BHZT and LNO/LCMO/BHZT were fabricated to achieve different magneto-electric effects (where LCMO = La0.7Ca0.3MnO3, BHZT= BaHf0.045Zr0.045Ti0.91O3, and LNO = LaNiO3). The multilayers were characterized by high-resolution transmission electron-microscopy and x-ray diffraction. Electrical transport (resistivity and Hall effect) and magnetic measurements show that the LCMO layer is ferromagnetic with a reduced Curie temperature of about 230 K, which is about 40 K lower than the bulk value. Our preliminary experiments show significant magneto-electric effects in both multilayer configurations.

*Work supported by the National Science Foundation under a DMR Partnership for Research and Education (PREM) grant 1523588.

Presenters

  • Yanette Navarrete

    • Department of Physics and Astronomy, California State University

Authors

  • Yanette Navarrete

    • Department of Physics and Astronomy, California State University

  • Bo Truong

    • Department of Physics and Astronomy, California State University
    • Physics and Astronomy, California State University

  • Charles Zhang

    • Department of Physics, University of Toronto

  • Susan Trolier-McKinstry

    • Department of Materials Science, Pennsylvania State University

  • John Wei

    • Department of Physics, University of Toronto
    • University of Toronto
    • Department of Physics, Univ of Toronto

  • Guo-meng Zhao

    • Department of Physics and Astronomy, California State University
    • Physics and Astronomy, California State University

  • Oscar Bernal

    • Physics Department, Cal State Univ- Los Angeles
    • Department of Physics and Astronomy, California State University
    • Physics and Astronomy, California State University
    • Physics, Cal State Univ- Los Angeles