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
TL;DR
This paper investigates the unique magneto-optical responses of Frenkel and Wannier excitons in CrSBr, revealing how their different spatial characteristics influence their interactions with magnetic order and lattice vibrations.
Contribution
It demonstrates that the spatial nature of excitons in CrSBr affects their magnetic and vibrational responses, challenging traditional exciton classifications.
Findings
Frenkel and Wannier excitons exhibit distinct responses to magnetic order.
Their spatial character influences sensitivity to lattice vibrations.
The study challenges the standard dichotomy in exciton description.
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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