The DOI matches its Crossref record; 52 of the 52 references it cites were found in a registry or an index.
Anomalous Light Cones and Valley Optical Selection Rules of Interlayer Excitons in Twisted Heterobilayers
Open accessAbstract
We show that, because of the inevitable twist and lattice mismatch in heterobilayers of transition metal dichalcogenides, interlayer excitons have sixfold degenerate light cones anomalously located at finite velocities on the parabolic energy dispersion. The photon emissions at each light cone are elliptically polarized, with the major axis locked to the direction of exciton velocity, and helicity specified by the valley indices of the electron and the hole. These finite-velocity light cones allow unprecedented possibilities for optically injecting valley polarization and valley current, and the observation of both direct and inverse valley Hall effects, by exciting interlayer excitons. Our findings suggest potential excitonic circuits with valley functionalities, and unique opportunities to study exciton dynamics and condensation phenomena in semiconducting 2D heterostructures.
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Cited by
Schaibley, J. R., Yu, H., Clark, G., Rivera, P., Ross, J. S., Seyler, K. L., Yao, W., & Xu, X. (2016) · Nature Reviews Materials · doi:10.1038/natrevmats.2016.55 · Cited by 2,652
Self-citationEvidence for moiré excitons in van der Waals heterostructures
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Interlayer Exciton Optoelectronics in a 2D Heterostructure p–n Junction
Ross, J. S., Rivera, P., Schaibley, J., Lee-Wong, E., Yu, H., Taniguchi, T., Watanabe, K., Yan, J., Mandrus, D., Cobden, D., et al. (2017) · Nano Letters · doi:10.1021/acs.nanolett.6b03398 · Cited by 339
Self-citationExcitons and emergent quantum phenomena in stacked 2D semiconductors
Wilson, N. P., Yao, W., Shan, J., & Xu, X. (2021) · Nature · doi:10.1038/s41586-021-03979-1 · Cited by 319
Self-citationElectronic-structure methods for twisted moiré layers
Carr, S., Fang, S., & Kaxiras, E. (2020) · Nature Reviews Materials · doi:10.1038/s41578-020-0214-0 · Cited by 303
Metadata
- Authors
- Yu, H., Wang, Y., Tong, Q., Xu, X., & Yao, W.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2015-10-30
- Volume
- 115
- Issue
- 18
- Pages
- 187002-187002
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2114392392
- Cited by
- 256
- References
- 52
- FWCI
- 7.59
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Yu, H., Wang, Y., Tong, Q., Xu, X., & Yao, W. (2015). Anomalous Light Cones and Valley Optical Selection Rules of Interlayer Excitons in Twisted Heterobilayers. Physical Review Letters. https://doi.org/10.1103/physrevlett.115.187002
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