Spin waves in the bilayer van der Waals magnet CrSBr
arXiv:2502.20797 · doi: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.
14 pages, 8 figures
References in corpus (16)
- Magnetic 2D materials and heterostructures
- Magnetic Order and Symmetry in the 2D Semiconductor CrSBr
- An Introduction to Spin Wave Computing
- Triaxial magnetic anisotropy in the two-dimensional ferromagnetic semiconductor CrSBr
- Magnetic and electronic phase transitions probed by nanomechanical resonance
- Multistep magnetization switching in orthogonally twisted ferromagnetic monolayers
- Spin waves and magnetic exchange Hamiltonian in CrSBr
- Universal spin wavepacket transport in van der Waals antiferromagnets
- Dielectric tunability of magnetic properties in orthorhombic ferromagnetic monolayer CrSBr
- Giant exchange splitting in the electronic structure of A-type 2D antiferromagnet CrSBr
- Microscopic parameters of the van der Waals CrSBr antiferromagnet from microwave absorption experiments
- Nitrogen-vacancy magnetometry of CrSBr by diamond membrane transfer
- Theory of the dipole-exchange spin wave spectrum in ferromagnetic films with in-plane magnetization revisited
- Modification of unconventional Hall effect with doping at the non-magnetic site in a 2D van der Waals ferromagnet
- Magnon dispersion in bilayers of two-dimensional ferromagnets
- Dipolar-exchange spin waves in thin bilayers