Probing temperature dependent non-radiative decay channels in CrSBr with nonlinear optics
Abstract
Among the recently discovered layered magnetic materials, the antiferromagnet CrSBr has attracted considerable interest thanks to its stability, quasi-one-dimensional crystal structure, and direct near-infrared band gap. These properties make it a suitable platform for combined electrical, magnetic, and optical measurements, and thus for studying exciton dynamics and transport across different magnetic phases. In this work, we investigate the optical response of CrSBr across its paramagnetic and antiferromagnetic phases by combining nonlinear optical spectroscopy, including second-harmonic generation, third-harmonic generation, and two-photon photoluminescence, with linear photoluminescence measurements. The observation of a clear difference in the temperature dependence of third-harmonic generation and photoluminescence intensities allows us to identify the onset of non-radiative recombination channels in the antiferromagnetic phase.
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BibTeX
@misc{dan2026probing,
title = {{Probing temperature dependent non-radiative decay channels in CrSBr with nonlinear optics}},
author = {Minjiang Dan and Till Weickhardt and Paul Herrmann and Fabian Glatz and Marie-Christin Heißenbüttel and Thorsten Deilmann and Michael Rohlfing and Ksenia Mosina and Zdeněk Sofer and Benjamin Pingault and Julian Klein and Giancarlo Soavi},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.31163},
eprint = {2609.31163},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.31163},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Probing temperature dependent non-radiative decay channels in CrSBr with nonlinear optics
AU - Minjiang Dan
AU - Till Weickhardt
AU - Paul Herrmann
AU - Fabian Glatz
AU - Marie-Christin Heißenbüttel
AU - Thorsten Deilmann
AU - Michael Rohlfing
AU - Ksenia Mosina
AU - Zdeněk Sofer
AU - Benjamin Pingault
AU - Julian Klein
AU - Giancarlo Soavi
PY - 2026
DA - 2026/09/25
PB - arXiv
DO - 10.48550/arxiv.2609.31163
UR - https://arxiv.org/abs/2609.31163
AB - Among the recently discovered layered magnetic materials, the antiferromagnet CrSBr has attracted considerable interest thanks to its stability, quasi-one-dimensional crystal structure, and direct near-infrared band gap. These properties make it a suitable platform for combined electrical, magnetic, and optical measurements, and thus for studying exciton dynamics and transport across different magnetic phases. In this work, we investigate the optical response of CrSBr across its paramagnetic and antiferromagnetic phases by combining nonlinear optical spectroscopy, including second-harmonic generation, third-harmonic generation, and two-photon photoluminescence, with linear photoluminescence measurements. The observation of a clear difference in the temperature dependence of third-harmonic generation and photoluminescence intensities allows us to identify the onset of non-radiative recombination channels in the antiferromagnetic phase.
ER -