Micromagnetic modeling of skyrmion and domain wall dynamics in Pt/TmIG systems

ORAL

Abstract

We present investigation of skyrmion and domain wall formation and dynamics in Pt/Tm3Fe5O12(TmIG) bilayers. In the system domain wall and skyrmion motion is driven by Spin Hall Effect (SHE) induced by the electric current flowing in the Pt layer. Micromagnetic modeling is done using the magnetic parameters determined specifically for the Pt/TmIG bilayers grown at the Ohio State University. The parameters used in micromagentic modeling were experimentally measured on the grown films using a broad range of experimental techniques including, but not limited to, Ferromagnetic Resonance, SQUID Magnetometry and topological Hall measurements. The modeling is done using both the commercially available and the custom developed software. The objective of the investigation is to determine the path to achieving high velocities of skyrmion motion. We compare our modeling results with the results of Magnetic Force Microscopy and Magneto-Optical Kerr Effect microscopy measurements.

*This work is supported by DARPA Topological Excitations in Electronics (TEE) grant D18AP00008.

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Presenters

  • Denis Pelekhov

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

Authors

  • Denis Pelekhov

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

  • Jacob B. Freyermuth

    • Ohio State Univ - Columbus

  • Camelia Selcu

    • Ohio State Univ - Columbus

  • Adam S Ahmed

    • Ohio State Univ - Columbus

  • Nuria Bagues Salguero

    • Ohio State Univ - Columbus

  • Jason Guo

    • Ohio State Univ - Columbus

  • Aidan J Lee

    • Ohio State Univ - Columbus
    • Physics, Ohio State University

  • Igor Lyalin

    • Physics, Ohio State University
    • Ohio State Univ - Columbus

  • Brendan McCullian

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

  • Binbin Wang

    • Ohio State Univ - Columbus

  • Po Kuan Wu

    • Ohio State Univ - Columbus

  • P Chris Hammel

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

  • Roland Kawakami

    • Ohio State Univ - Columbus
    • Physics, Ohio State University

  • David W McComb

    • Ohio State Univ - Columbus

  • 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

  • Mohit Randeria

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