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

Rob den Teuling ^1,*, Ritesh Das¹, Artem V. Bondarenko^1,2, Elena V. Tartakovskaya ^1,2,3, Gerrit E. W. Bauer ^4,5, and Yaroslav M. Blanter ¹

¹Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft, The Netherlands
²V. G. Baryakhtar Institute of Magnetism of the NAS of Ukraine, 36b Vernadsky Boulevard, 03142 Kiev, Ukraine
³Institute of Spintronics and Quantum Information, Faculty of Physics and Astronomy, Adam Mickiewicz University, Poznań, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland
⁴WPI-AIMR & IMR & CSIS, Tohoku University, 2-1-1 Katahira, Sendai 980-8577, Japan
⁵Kavli Institute for Theoretical Sciences, University of the Chinese Academy of Sciences, Beijing 10090, China

^*Contact author: r.denteuling@tudelft.nl

PDF

Phys. Rev. B 112, 144442 – Published 29 October, 2025

DOI: https://doi.org/10.1103/w4xn-2yff

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.

Physics Subject Headings (PhySH)

Corrections

15 December, 2025

Correction: In Eq. (30), each occurrence of $E$ has been changed to $K_{1}$ .

Authorization Required

We need you to provide your credentials before accessing this content.

Physical Review B

Export citation

Export citation

Spin waves in the bilayer van der Waals magnet CrSBr

Abstract

Physics Subject Headings (PhySH)

Corrections

Authorization Required

Other Options

References (Subscription Required)

Outline

Information

Filter

Filter

Article Lookup

Enter a citation

Spin waves in the bilayer van der Waals magnet CrSBr

Abstract

Physics Subject Headings (PhySH)

Corrections

Authorization Required

Log in via your institution

Log in via APS Member Subscription

Other Options

References (Subscription Required)