The optical properties of the 2D magnet CrSBr were explored through photoluminescence/reflectance, angle-resolved photoemission spectroscopy, and self-consistent GW calculations. These data reveal a large exciton binding energy in bulk CrSBr that is attributed to localization arising from the quasi-1D electronic structure.
Smolenski, S. et al., Large Exciton Binding Energy in the Bulk van der Waals Magnet CrSBr. arXiv:2403.13897 (2024) and Smolenski, S., Wen, M., Li, Q. et al. Large exciton binding energy in a bulk van der Waals magnet from quasi-1D electronic localization. Nat Commun 16, 1134 (2025). https://doi.org/10.1038/s41467-025-56457-x
