Year: 2026
Type: preprint
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.
Source: arXiv (Cornell University)
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
Funders: National Science Foundation, U.S. Department of Energy, European Commission, Deutsche Forschungsgemeinschaft, Ministerstvo Školství, Mládeže a Tělovýchovy, Gauss Centre for Supercomputing, Office of Science, Basic Energy Sciences, Argonne National Laboratory, Division of Materials Sciences and Engineering
Awards: G102163711, G1286251239, G1313983767, GRK 2675: Maßgeschneiderte Metaoberflächen – Erzeugung, Programmierung und Detektion von Licht, Next Generation of 2D Monoelemental Materials, Ab initio Beschreibung von korrelierten MehrteilchenAnregungen, G1935710221, SFB 1375: Nichtlineare Optik bis hin zu atomaren Skalen, G237429762, TRAILBLAZER: Constructing photonic quantum systems by deterministic electron-driven atom positioning, Nichtlineare und ultraschnelle optische Antwort von mit Monolagen der Übergangsmetalldichalkogenide hybridisierten Metamaterialinspirierten resonanten Wellenleitern, G3420992565, G3774312942, G498139845, G4994611226, G5425951435, G569086322, G5950183150, G8140083606, G855159969, G8835289838
OpenAlex ID: W7214674672