La$_{0.7}$Sr$_{0.3}$MnO$_{3}$/PbZr$_{0.2}$Ti$_{0.8}$O$_{3}$ interfaces examined by synchrotron x-rays

ORAL

Abstract

Magnetoelectric coupling is a coupling effect between the magnetic and electric orders of matter. Magnetoelectric interfaces between La0.7Sr0.3MnO3 (LSMO)/PbZr0.2Ti0.8O3 (PZT) thin films have been investigated by valence sensitive x-ray absorption spectroscopy. Mn valence depth profile was obtained by taking advantage of the depth sensitivity of the measurement methods. The interfacial Mn valence was found to be smaller than in the bulk, where PZT polarization played a role. Mn valence gradually increased to a relatively constant value as PZT transits from monodomain to polydomain along the PZT thickness gradient. Mn valence consistently became larger/smaller when PZT was poled away from/towards LSMO. These research results are consistent with the charge modulated interfacial magnetoelectric coupling mechanism and may shine light on creating magnetoelectric coupled interfaces.

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Authors

  • Jinling Zhou

    West Virginia University, USA

  • Vu Thanh Tra

    National Chiao Tung University, Taiwan

  • Shuai Dong

    Southeast University, China

  • Robbyn Trappen

    West Virginia University, West Virginia University, USA

  • Matthew A. Marcus

    Lawrence Berkeley National Laboratory, USA

  • Catherine Jenkins

    Lawrence Berkeley National Laboratory, USA

  • Charles Frye

    West Virginia University, USA

  • Evan Wolfe

    West Virginia University, USA

  • Ryan White

    National Institute of Standards and Technology, USA

  • Srinivas Polisetty

    West Virginia University, USA

  • Scott Cushing

    National Radio Astronomy Observatory, Jodrell Bank Centre for Astrophysics, New York University Abu Dhabi, Naval Research Laboratory, CSIRO Astronomy and Space Sciences, George Mason University, ASTRON, NASA Goddard Space Flight Center, University of Wisconsin-Milwaukee,, Station de radioastronomie de Nancay, Columbia Astrophysics Laboratory, Max-Planck-Institut fur Physik, West Virginia Univ, West Virginia University, Lehigh University, Fraunhofer Institute for Physical Measurement Techniques, Department of Microsystems Engineering (IMTEK), Pennsylvania State University, Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506, USA, Massachusetts Institute of Technology, University of Minnesota, Pennsylvania State Univ, University of Maryland, Towson University, Department of Physics, Villanova University, University of Virginia, Boston University, Univ of Maryland-College Park, Harvard University, The Pennsylvania State Unversity, University of Wisconsin-Madison, McMaster University, California State University - Long Beach, National Chiao Tung University, National Chiao Tung University, Taiwan, Ohio University, University of Rennes, UMR CNRS 6251, Rennes, France, University of Bordeaux, UMR 5804, Floirac, France, University of Bordeaux, UMR 5255, Talence, France, Sandia National laboratories, Livermore, CA, Department of Chemistry, West Virginia University, Morgantwon, WV, The Pennsylvania State University, University of Toronto, Departamento de F\'isica, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile, Cinvestav-Unidad Queretaro, Queretaro-76230, Mexico, Department of Physics and Astronomy, West Virginia University, Morgantown, WV-26505-6315, USA, The University of Arizona, TU Dortmund, Dortmund, Naval Air Warfare Center - Aircraft Division

  • James LeBeau

    North Carolina State University, USA

  • Ying-Hao Chu

    National Chiao Tung University, Taiwan

  • Micky Holcomb

    West Virginia University, West Virginia University, USA