The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.
Chiral Orbital-Angular Momentum in the Surface States ofBi2Se3
Open accessAbstract
We performed angle-resolved photoemission (ARPES) experiments with circularly polarized light and first-principles density functional calculation with spin-orbit coupling to study surface states of a topological insulator Bi2Se3. We observed circular dichroism (CD) as large as 30% in the ARPES data with upper and lower Dirac cones showing opposite signs in CD. The observed CD is attributed to the existence of local orbital-angular momentum (OAM). First-principles calculation shows that OAM in the surface states is significant and is locked to the electron momentum in the opposite direction to the spin, forming chiral OAM states. Our finding opens a new possibility for strong light-induced spin-polarized current in surface states. We also provide a proof for local OAM origin of the CD in ARPES.
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Cites
Topological insulators in Bi2Se3, Bi2Te3 and Sb2Te3 with a single Dirac cone on the surface
Zhang, H., Liu, C.-X., Qi, X.-L., Dai, X., Fang, Z., & Zhang, S.-C. (2009) · Nature Physics · doi:10.1038/nphys1270 · Cited by 6,359
Topological Insulators in Three Dimensions
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Observation of a large-gap topological-insulator class with a single Dirac cone on the surface
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Experimental Realization of a Three-Dimensional Topological Insulator, Bi 2 Te 3
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A topological Dirac insulator in a quantum spin Hall phase
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A tunable topological insulator in the spin helical Dirac transport regime
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Topological surface states protected from backscattering by chiral spin texture
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p -type Bi 2 Se 3 for topological insulator and low-temperature thermoelectric applications
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Cited by
Generating optical orbital angular momentum at visible wavelengths using a plasmonic metasurface
Karimi, E., Schulz, S. A., De Leon, I., Qassim, H., Upham, J., & Boyd, R. W. (2014) · Light: Science & Applications · doi:10.1038/lsa.2014.48 · Cited by 834
Transport evidence for Fermi-arc-mediated chirality transfer in the Dirac semimetal Cd3As2
Moll, P. J. W., Nair, N. L., Helm, T., Potter, A. C., Kimchi, I., Vishwanath, A., & Analytis, J. G. (2016) · Nature · doi:10.1038/nature18276 · Cited by 383
Jiang, J., Li, S., Zhang, T., Sun, Z., Chen, F., Ye, Z. R., Xu, M., Ge, Q. Q., Tan, S. Y., Niu, X. H., et al. (2013) · Nature Communications · doi:10.1038/ncomms4010 · Cited by 291
Emergent quantum confinement at topological insulator surfaces
Bahramy, M. S., King, P. D. C., de la Torre, A., Chang, J., Shi, M., Patthey, L., Balakrishnan, G., Hofmann, P., Arita, R., Nagaosa, N., et al. (2012) · Nature Communications · doi:10.1038/ncomms2162 · Cited by 286
Orbitronics: Orbital currents in solids
Go, D., Jo, D., Lee, H.-W., Kläui, M., & Mokrousov, Y. (2021) · EPL (Europhysics Letters) · doi:10.1209/0295-5075/ac2653 · Cited by 266
Self-citation
Metadata
- Authors
- Park, S. R., Han, J., Kim, C., Koh, Y. Y., Kim, C., Lee, H., Choi, H. J., Han, J. H., Lee, K. D., Hur, N. J., Arita, M., Shimada, K., Namatame, H., & Taniguchi, M.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2012-01-25
- Volume
- 108
- Issue
- 4
- Pages
- 046805-046805
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2060391917
- Cited by
- 165
- References
- 9
- FWCI
- 7.31
- Type
- journal article
- Language
- en
- Open access
- green
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- Park, S. R., Han, J., Kim, C., Koh, Y. Y., Kim, C., Lee, H., Choi, H. J., Han, J. H., Lee, K. D., Hur, N. J., Arita, M., Shimada, K., Namatame, H., & Taniguchi, M. (2012). Chiral Orbital-Angular Momentum in the Surface States ofBi2Se3. Physical Review Letters. https://doi.org/10.1103/physrevlett.108.046805
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