Magnon Accumulation in Chirally Coupled Magnets

Tao Yu, Yu-Xiang Zhang, Sanchar Sharma, Xiang Zhang, Yaroslav M. Blanter, and Gerrit E. W. Bauer
Phys. Rev. Lett. 124, 107202 – Published 11 March 2020
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  • Introduction.—
  • Formalism.—
  • Collective modes.—
  • Magnon accumulation.—
  • Conclusions.—
  • ACKNOWLEDGMENTS
    • Supplemental Material
    References

    Abstract

    We report strong chiral coupling between magnons and photons in microwave waveguides that contain chains of small magnets on special lines. Large magnon accumulations at one edge of the chain emerge when exciting the magnets by a phased antenna array. This mechanism holds the promise of new functionalities in nonlinear and quantum magnonics.

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    • Received 7 September 2019
    • Revised 19 December 2019
    • Accepted 14 February 2020

    DOI:https://doi.org/10.1103/PhysRevLett.124.107202

    © 2020 American Physical Society

    Physics Subject Headings (PhySH)

    1. Research Areas
    Light-induced magnetic effectsMagnetic interactionsMagnetization dynamicsMagnonsOptical & microwave phenomenaPolaritons
    1. Physical Systems
    Chiral magnets
    Condensed Matter, Materials & Applied Physics

    Authors & Affiliations

    Tao Yu1, Yu-Xiang Zhang2, Sanchar Sharma1, Xiang Zhang1, Yaroslav M. Blanter1, and Gerrit E. W. Bauer3,1

    • 1Kavli Institute of NanoScience, Delft University of Technology, 2628 CJ Delft, Netherlands
    • 2Department of Physics and Astronomy, Aarhus University, 8000 Aarhus C, Denmark
    • 3Institute for Materials Research and WPI-AIMR and CSRN, Tohoku University, Sendai 980-8577, Japan

    See Also

    Chiral coupling of magnons in waveguides

    Tao Yu, Xiang Zhang, Sanchar Sharma, Yaroslav M. Blanter, and Gerrit E. W. Bauer
    Phys. Rev. B 101, 094414 (2020)

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    Vol. 124, Iss. 10 — 13 March 2020

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