Giant Piezoelectricity Driven Magnetoelectric Coupling in a Multiferroic Membrane Heterostructure

ORAL

Abstract

Strain intermediated magnetoelectric coupling in thin film heterostructures is a promising paradigm for sensors and information storage devices, but it is hindered by substrate clamping. We prepared a freestanding, unclamped, 500 nm thick, (001) oriented [Pb(Mg1/3Nb2/3)O3]0.7-[PbTiO3]0.3 (PMN-PT) membrane with a 35nm ferromagnetic Ni overlayer. Magneto-optic Kerr magnetometry shows that upon applying a bias voltage, an in-plane magnetic anisotropy of 5 kJ/m3 forms, resulting in Ni magnetization rotation. Additionally, the large strains in these devices cause macroscopic bending and flexing, which was characterized with laser Doppler vibrometry and white light interferometry.

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Presenters

  • Julian Irwin

    Physics, University of Wisconsin-Madison, Physics, University of Wisconsin, Department of Physics, University of Wisconsin-Madison

Authors

  • Julian Irwin

    Physics, University of Wisconsin-Madison, Physics, University of Wisconsin, Department of Physics, University of Wisconsin-Madison

  • Shane Lindemann

    MS&E, University of Wisconsin, Department of Materials Science and Engineering, University of Wisconsin-Madison

  • Wan Maeng

    MS&E, University of Wisconsin

  • Alyssa Brewer

    MS&E, University of Wisconsin

  • Josh Frederick

    MS&E, University of Wisconsin

  • Masahito Sayanagi

    Physics, University of Wisconsin, Department of Physics, University of Wisconsin-Madison

  • Tae Heon Kim

    Matls Sci & Eng, University of Wisconsin-Madison, MS&E, University of Wisconsin

  • Mark Rzchowski

    Univ of Wisconsin, Madison, Physics, University of Wisconsin-Madison, Physics, Univ of Wisconsin, Madison, Physics, University of Wisconsin, Department of Physics, University of Wisconsin-Madison

  • Chang-Beom Eom

    University of Wisconsin-Madison, Univ of Wisconsin-Madison, Univ of Wisconsin, Madison, Department of Material Science and Engineering, University of Wisconsin-Madison, Matls Sci & Eng, University of Wisconsin-Madison, University of Wisconsin, Department of Materials Science and Engineering, University of Wisconsin-Madison, University of Wisconsin–Madison, MS&E, University of Wisconsin, Physics, University of Wisconsin–Madison, Department of Materials Science and Engineering, University of Wisconsin - Madison