ArticleNature materials2025
Magnetically confined surface and bulk excitons in a layered antiferromagnet.
Article in Nature materials, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed.
- Magnetic control of an exciton-polariton condensate in a van der Waals magnet.Nature materials · 2026Article
- Excitons in van der Waals magnetic materials.Nature materials · 2026Review
- Field-resolved observation of exciton coherence in a van der Waals magnet.Nature materials · 2026Article
- Hybrid Superconducting-Magnetic Van der Waals Heterostructures: Physics and Application.Advanced materials (Deerfield Beach, Fla.) · 2026Review
- Drastically magnetically tuned coupling strength and nonlinearity in CrSBr exciton-polaritons.Light, science & applications · 2026Article
- Tunable magnons in a dual-gated 2D antiferromagnet.Nature communications · 2026Article
- Mesoscale atomic engineering in a crystal lattice.Nature · 2026Article
- Spin-transition modulated light-emitting devices in a 2D magnet.Nature communications · 2026Article
- Distinct magneto-optical response of Frenkel and Wannier excitons in CrSBr.Nature communications · 2026Article
- Fundamental optical phenomena of strongly anisotropic polaritons at the nanoscale.Nature nanotechnology · 2026Review
- Exciton transport driven by spin excitations in an antiferromagnet.Nature nanotechnology · 2026Article
- Electrical excitation of self-hybridized exciton polaritons in a van der Waals antiferromagnet.Science advances · 2025Article
- Magnetic Correlation Spectroscopy in CrSBr.ACS nano · 2025Article
- Magnon-mediated exciton-exciton interaction in a van der Waals antiferromagnet.Nature materials · 2025Article
- Surface-Dominated Quantum-Metric-Induced Nonlinear Transport in the Layered Antiferromagnet CrSBr.Nano letters · 2025Article
- Magnetic order as a tuning knob for Coulomb correlation.Nature materials · 2025Article
Corrections and comments
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Authors and funding
25 authors.
Funding
Abstract
The discovery of two-dimensional van der Waals magnets has greatly expanded our ability to create and control nanoscale quantum phases. A unique capability emerges when a two-dimensional magnet is also a semiconductor that features tightly bound excitons with large oscillator strengths that fundamentally determine the optical response and are tunable with magnetic fields. Here we report a previously unidentified type of optical excitation-a magnetic surface exciton-enabled by the antiferromagnetic spin correlations that confine excitons to the surface of CrSBr. Magnetic surface excitons exhibit stronger Coulomb attraction, leading to a higher binding energy than excitons confined in bulk layers, and profoundly alter the optical response of few-layer crystals. Distinct magnetic confinement of surface and bulk excitons is established by layer- and temperature-dependent exciton reflection spectroscopy and corroborated by ab initio many-body perturbation theory calculations. By quenching interlayer excitonic interactions, the antiferromagnetic order of CrSBr strictly confines the bound electron-hole pairs within the same layer, regardless of the total number of layers. Our work unveils unique confined excitons in a layered antiferromagnet, highlighting magnetic interactions as a vital approach for nanoscale quantum confinement, from few layers to the bulk limit.
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Registered trials
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