ArticleNano letters2025
Strain Control of Valley Polarization Dynamics in a 2D Semiconductor via Exciton Hybridization.
Article in Nano letters, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Chirality Engineering and Properties in Two-Dimensional Layered Materials.Small (Weinheim an der Bergstrasse, Germany) · 2026Review
- Precision Local Strain Engineering in 2D Semiconductors and Their van der Waals Heterostructures.Small (Weinheim an der Bergstrasse, Germany) · 2026Review
- Fermi polarons under strain-induced pseudomagnetic fields.Nature communications · 2025Article
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Authors and funding
17 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Encoding and manipulating digital information in quantum degrees of freedom is one of the major challenges of today's science and technology. The valley indices of excitons in transition metal dichalcogenides (TMDs) are well-suited to addressing this challenge. Here, we employ mechanical strain to manipulate intervalley interactions and tune the valley polarization dynamics of excitons across a broader range of momentum space in monolayer TMDs. We use strain engineering to form valley-hybridized excitons that combine the advantages of bright intravalley excitons, where the valley index directly couples to light polarization, and dark intervalley excitons, characterized by low depolarization rates. We demonstrate that these valley-hybridized excitons exhibit signatures of coherently coupled states with a 100-fold reduction in valley depolarization rate and up to a 5-fold increase in steady-state valley polarization compared to previously studied excitons. Our findings of strain-tunable valley character of excitons advance the applications of TMDs in valleytronics.
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