Nature Communications· 2026Q1
Efficient transport kinetics of indirect excitons in van der Waals heterostructure
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- Q1SCImago
- 2026year
Short summary
Indirect excitons (IXs) exhibit anomalously high mobility in van der Waals heterostructures despite substantial in-plane disorder, suggesting efficient transport kinetics.
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Key points
- Efficient indirect exciton (IX) transport kinetics observed in van der Waals heterostructures.
- Anomalously high IX mobility present despite substantial in-plane disorder.
- Mobility decreases with increasing temperature and shows non-monotonic density dependence.
- Observed behavior is consistent with theoretical predictions of IX superfluidity.
AI-generated from the title and abstract; the full text is not read.
Abstract
Abstract Exciton transport is fundamental for understanding transport phenomena in bosonic systems and for exploring excitation energy transfer in materials. Spatially indirect excitons (IXs) have long lifetimes allowing them to form quantum bosonic states and travel long distances. Van der Waals heterostructures form a new materials platform for exploring IX transport. Disordered in-plane potentials suppress IX transport due to IX localization and scattering. In this work, we found the efficient IX transport kinetics characterized by anomalously high IX mobility. The efficient IX transport kinetics is observed in the presence of substantial in-plane disorder. The anomalously high IX mobility, its disappearance with increasing temperature, and its non-monotonic dependence on density are qualitatively consistent with theoretical predictions of IX superfluidity.
The authors' abstract, as published at the source. Nature Communications, 2026 · DOI ↗
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Field: Atomic and Molecular Physics, and Optics
Atomic and Molecular Physics, and OpticsPhysics and Astronomy