Spin waves in the bilayer van der Waals magnet CrSBr

Rob den Teuling; Ritesh Das; Artem V. Bondarenko; Elena V. Tartakovskaya; Gerrit E. W. Bauer; Yaroslav M. Blanter

doi:10.1103/w4xn-2yff

Spin waves in the bilayer van der Waals magnet CrSBr

Mesoscale and Nanoscale Physics 2026-05-05 v3

Authors: Rob den Teuling , Ritesh Das , Artem V. Bondarenko , Elena V. Tartakovskaya , Gerrit E. W. Bauer , Yaroslav M. Blanter

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Abstract

We derive analytical expressions for the spin wave frequencies and precession amplitudes in monolayer and antiferromagnetically coupled bilayer CrSBr under in-plane external magnetic fields. The analysis covers the antiferromagnetic, ferromagnetic, and canted phases, demonstrating that the spin wave frequencies in all phases are tunable by the applied magnetic field. We discuss the roles of intra- and interlayer exchange interactions, triaxial anisotropy, and intralayer dynamic dipolar fields in controlling the magnetization dynamics.

Keywords

Spin waves Van der Waals magnet CrSBr Antiferromagnetic coupling Magnetic anisotropy Magnetization dynamics

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@article{arxiv.2502.20797,
  title  = {Spin waves in the bilayer van der Waals magnet CrSBr},
  author = {Rob den Teuling and Ritesh Das and Artem V. Bondarenko and Elena V. Tartakovskaya and Gerrit E. W. Bauer and Yaroslav M. Blanter},
  journal= {arXiv preprint arXiv:2502.20797},
  year   = {2026}
}

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14 pages, 8 figures

Spin waves in the bilayer van der Waals magnet CrSBr

Abstract

Keywords

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