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arXiv · 2502.20797

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
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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.

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Rob den Teuling, Ritesh Das, Artem V. Bondarenko, Elena V. Tartakovskaya, Gerrit E. W. Bauer, Yaroslav M. Blanter. 2025-02-28. Spin waves in the bilayer van der Waals magnet CrSBr. https://doi.org/10.1103/w4xn-2yff

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