Strong Interlayer Magnon-Magnon Coupling in Magnetic Hybrid Nanostructures

ORAL

Abstract

Strong couplings between magnons and photons have recently attracted lots of attention due to potential applications in quantum computing by utilizing coherent couplings between spins and superconducting qubits. Here, I will present our recent experimental results on strong interlayer magnon-magnon coupling in an on-chip nanomagnonic device at room temperature [1]. Ferromagnetic nanowire arrays are integrated on a 20-nm-thick yttrium iron garnet (YIG) thin film strip. Large anticrossing gaps up to 1.58 GHz are observed between the ferromagnetic resonance of the nanowires and the in-plane standing spin waves of the YIG film. The coupling strength is tunable by the magnetic configuration, allowing the coherent control of magnonic devices.

Reference:
[1] J. Chen, C. Liu, T. Liu, Y. Xiao, K. Xia, G. E. W. Bauer, M. Wu and H. Yu, Phys. Rev. Lett., 120, 217202 (2018)

*We acknowledge the support by NSFC under Grant No. 11674020, No. 61774017, No. 11734004, and No. 21421003, 111 talent program B16001, National Key Research and Development Program of China (Grant No. 2017YFA0303304), U.S. National Science Foundation (EFMA1641989 and DMR-1407962), Japan Society for the Promotion of Science Kakenhi (Japan) Grants-in-Aid for Scientific Research (Grant No. 26103006).

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Presenters

  • Jilei Chen

    • BeiHang University

Authors

  • Jilei Chen

    • BeiHang University

  • Chuanpu Liu

    • Colorado State University
    • BeiHang University

  • Tao Liu

    • Physics Department, Colorado State University

  • Yang Xiao

    • Nanhang University

  • Ke Xia

    • Southern University of Science and Technology
    • Beijing Normal University

  • Gerrit Bauer

    • Tohoku University
    • Institute for Materials Research & WPI AIMR & CSRN, Tohoku University

  • Mingzhong Wu

    • Colorado State University
    • Department of Physics, Colorado State University
    • Physics Department, Colorado State University
    • Physics, Colorado State University

  • Haiming Yu

    • BeiHang University