Surface acoustic waves and skyrmions

ORAL

Abstract

We investigate the effect of high-frequency surface acoustic waves (SAW) on a variety of magnetic textures using polar magneto-optical Kerr microscopy in 128º Y cut LiNbO3/Ta(3nm)/Pt(3nm)CoFeB(0.4nm)Pt(2nm). The as-deposited samples are in a single-domain state that remains impervious to magnetic field configurations. Low-temperature annealing results in multi-domain states and a subsequent field sweep results in the nucleation of bubbles. The application of SAW rapidly increases the density of bubbles. We report on SAW-driven magnetic switching in the single-domain state and the SAW-driven dynamics of bubble domains in the multi-domain state.

*This work was supported by funding from the University of Nebraska-Lincoln.National Nanotechnology Coordinated Infrastructure and the Nebraska Center for Materials and Nanoscience, which are supported by the National Science Foundation under Award ECCS: 1542182, and the Nebraska Research Initiative.

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Presenters

  • Anil Adhikari

    • University of Nebraska Lincoln
    • University of Nebraska - Lincoln

Authors

  • Anil Adhikari

    • University of Nebraska Lincoln
    • University of Nebraska - Lincoln

  • Shireen Adenwalla

    • University of Nebraska-Lincoln
    • University of Nebraska - Lincoln