Studying Kittel-like modes in a 3D YIG disk using Torque-mixing Magnetic Resonance Spectroscopy

ORAL

Abstract

We report a study of ferrimagnetic resonance in a mesoscopic, single-crystalline YIG disk using torque-mixing magnetic resonance spectroscopy (TMRS). The Kittel model for magnetic resonance is a touchstone in measuring fundamental magnetic properties for magnetic films, which does not significantly depend on the film size. In 3D structures, ladders of confined resonance modes are observed, and these can exhibit the non-monotonic evolution of frequency with field familiar from Kittel modes. TMRS is a tool uniquely suited for observing this physics in individual 3D structures, on account of its combination of high sensitivity and broadband capability coupled with fine frequency resolution.

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Authors

  • Fatemeh Fani Sani

    Department of Physics and National Institute for Nanotechnology, University of Alberta, Canada, Univ. of Alberta, Department of Physics and National Institute for Nanotechnology, Univ. of Alberta, Dept. of Physics and National Institute for Nanotechnology

  • Joseph Losby

    Univ. of Alberta, Department of Physics and National Institute for Nanotechnology, Univ. of Alberta, Dept. of Physics and National Institute for Nanotechnology

  • Dylan Grandmont

    Univ. of Alberta, Department of Physics

  • Zhu Diao

    Univ. of Alberta, Department of Physics and National Institute for Nanotechnology, Univ. of Alberta, Dept. of Physics and National Institute for Nanotechnology

  • Miro Belov

    National Institute for Nanotechnology

  • Jacob Burgess

    Univ. of Alberta, Department of Physics and National Institute for Nanotechnology, Univ. of Alberta, Dept. of Physics and National Institute for Nanotechnology

  • Shawn Compton

    Univ. of Alberta, Department of Physics and National Institute for Nanotechnology, Univ. of Alberta, Dept. of Physics and National Institute for Nanotechnology

  • Wayne Hiebert

    National Institute for Nanotechnology

  • Doug Vick

    National Institute for Nanotechnology

  • Kaveh Mohammad

    Electrical and Computer Engineering, University of Manitoba, Electrical and Computer Engineering, University of Alberta

  • Elham Salimi

    Electrical and Computer Engineering, University of Manitoba, Electrical and Computer Engineering, University of Alberta

  • Gregory Bridges

    Electrical and Computer Engineering, University of Manitoba, Electrical and Computer Engineering, University of Alberta

  • Douglas Thomson

    Electrical and Computer Engineering, University of Manitoba

  • Mark Freeman

    Univ. of Alberta, Department of Physics and National Institute for Nanotechnology, Univ. of Alberta, Dept. of Physics and National Institute for Nanotechnology