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arXiv · 2506.16426

Distinct Magneto-Optical Response of Frenkel and Wannier Excitons in CrSBr

Maciej Smiertka·Michal Rygala·Katarzyna Posmyk·Paulina Peksa·Mateusz Dyksik·Dimitar Pashov·Kseniia Mosina·Zdenek Sofer·Mark van Schilfgaarde·Florian Dirnberger·Michal Baranowski·Swagata Acharya·Paulina Plochocka
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Abstract

This study shows that CrSBr hosts Frenkel-like and Wannier-Mott-like excitons whose distinct spatial character explains their contrasting sensitivity to magnetic order and lattice vibrations, challenging the standard dichotomy in describing excitons.

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Maciej Smiertka, Michal Rygala, Katarzyna Posmyk, Paulina Peksa, Mateusz Dyksik, Dimitar Pashov, Kseniia Mosina, Zdenek Sofer, Mark van Schilfgaarde, Florian Dirnberger, Michal Baranowski, Swagata Acharya, Paulina Plochocka. 2025-06-19. Distinct Magneto-Optical Response of Frenkel and Wannier Excitons in CrSBr. https://doi.org/10.1038/s41467-026-68482-5

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