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Acoustically driven magnons in CrSBr bilayers

Anton Shubnic1,*, Igor Chestnov1, Igor Lobanov1, Valery Uzdin1, Ivan Iorsh1,2,†, and Ivan A. Shelykh3,‡

  • *Contact author: anton.shubnic@metalab.ifmo.ru
  • †Contact author: ivan.iorsh@queensu.ca
  • ‡Contact author: shelykh@hi.is
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Phys. Rev. Research 8, 043135 – Published 6 November, 2026

DOI: https://doi.org/10.1103/xdkq-h9km

Abstract

We study the coupling between spin excitations and acoustic waves in bilayers of CrSBr, an ambiently stable two-dimensional (2D) magnetic material. We demonstrate that a strong dependence of interlayer exchange coupling on strain makes possible the resonant generation of magnons by an acoustic wave. It is shown that the parameters of the generation, in particular, the resonant frequency, can be tuned by an external magnetic field, which makes CrSBr a promising platform for spintronics applications.

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Phys. Rev. Research 8, 043135– Published 6 November, 2026
  • Received 13 April 2026
  • Accepted 16 September 2026
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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