Optical Measurements of Epitaxially Grown Ferrimagnetic Insulator Thin Films

ORAL

Abstract

Ferrimagnetic insulators exhibit attractive properties for low-loss spintronic applications. Recently, multiple groups have reported the detection of chiral magnetism and the topological Hall effect in Pt/Tm3Fe5O12 (TmIG) bilayers, suggesting a promising perspective for hosting small skyrmions. We investigate Tm3Fe5O12 thin films with atomically sharp interfaces and properties tunable via eptaxial strain. Sensitive magneto-optical Kerr effect measurements allow us to compare a series of samples with TmIG thickness in the range of 1.9 to 10 nm.

*We gratefully acknowledge the support from NSF MRSEC via grant DMR-1720595. This work was supported by the Center for Emergent Materials, an NSF MRSEC, under Grant No. DMR-2011876. Chang acknowledges support from a UT-Portugal collaboration grant.

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Presenters

  • Timothy Nathan Nunley

    • Department of Physics, University of Texas at Austin
    • Department of Physics, Center of Complex Quantum Systems, University of Texas at Austin

Authors

  • Timothy Nathan Nunley

    • Department of Physics, University of Texas at Austin
    • Department of Physics, Center of Complex Quantum Systems, University of Texas at Austin

  • Liang Juan Chang

    • Institute of Physics, Academia Sinica

  • Side Guo

    • Deparment of Physics, The Ohio State University
    • Department of Physics, The Ohio State University

  • David Lujan

    • Department of Physics, University of Texas at Austin
    • Department of Physics, Center of Complex Quantum Systems, University of Texas at Austin
    • University of Texas at Austin

  • Shang-Fan Lee

    • Academia Sinica
    • Institute of Physics, Academia Sinica
    • Physics, Academia Sinica

  • Fengyuan Yang

    • Ohio State Univ - Columbus
    • Deparment of Physics, The Ohio State University
    • Department of Physics, The Ohio State University
    • Physics, The Ohio State University
    • Department of Physics, Ohio State University
    • The Ohio State University
    • Physics, Ohio State University
    • Physics Department, The Ohio State University, Columbus, Ohio 43210

  • Xiaoqin (Elaine) Li

    • University of Texas at Austin
    • Physics, University of Texas at Austin
    • Department of Physics, University of Texas at Austin
    • U.T. Austin
    • Department of Physics, The University of Texas at Austin
    • Department of Physics, Center of Complex Quantum Systems, University of Texas at Austin