Scientific Achievement
Demonstrated that coherent propagation of spin wavepackets in van der Waals (vdW) magnets occurs through a universal mechanism of magnetic dipole coupling.
Significance and Impact
Identifying the mechanism of spin propagation at long wavelengths in the entire class of vdW magnets provides a set of optimization rules, as well as caveats, that are essential for any future applications of these promising systems.
Research Details
- Generated coherent spin wavepackets by optical pulses and tracked their motion by raster scanning of time-delayed probe pulses.
- Performed measurements of propagation in layered magnets Fe3Sn2 and CrSBr as functions of temperature and applied magnetic field.
Publication Details
Lee, Y. Sun, L. Ye, S. Rathi, K. Wang, Y.-M. Lu, J. Moore, J.G. Checkelsky, J. Orenstein PNAS 120 (21) (2023).
