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.

*This work was supported by the National Science Foundation under DMREF Grant No. DMR-1629270 and the Army Research Office through grant W911NF-17-1-0462.

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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