The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.
Reflection-Symmetric Second-Order Topological Insulators and Superconductors
Open accessAbstract
Second-order topological insulators are crystalline insulators with a gapped bulk and gapped crystalline boundaries, but with topologically protected gapless states at the intersection of two boundaries. Without further spatial symmetries, five of the ten Altland-Zirnbauer symmetry classes allow for the existence of such second-order topological insulators in two and three dimensions. We show that reflection symmetry can be employed to systematically generate examples of second-order topological insulators and superconductors, although the topologically protected states at corners (in two dimensions) or at crystal edges (in three dimensions) continue to exist if reflection symmetry is broken. A three-dimensional second-order topological insulator with broken time-reversal symmetry shows a Hall conductance quantized in units of e^{2}/h.
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Cites
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Cited by
Benalcazar, W. A., Bernevig, B. A., & Hughes, T. L. (2017) · Physical Review B · doi:10.1103/physrevb.96.245115 · Cited by 1,389
Higher-order topology in bismuth
Schindler, F., Wang, Z., Vergniory, M. G., Cook, A. M., Murani, A., Sengupta, S., Kasumov, A. Y., Deblock, R., Jeon, S., Drozdov, I., et al. (2018) · Nature Physics · doi:10.1038/s41567-018-0224-7 · Cited by 837
Comprehensive search for topological materials using symmetry indicators
Tang, F., Po, H. C., Vishwanath, A., & Wan, X. (2019) · Nature · doi:10.1038/s41586-019-0937-5 · Cited by 761
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Higher-order topological insulators and superconductors protected by inversion symmetry
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Metadata
- Authors
- Langbehn, J., Peng, Y., Trifunovic, L., von Oppen, F., & Brouwer, P. W.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2017-12-11
- Volume
- 119
- Issue
- 24
- Pages
- 246401-246401
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2745740700
- Cited by
- 973
- References
- 9
- FWCI
- 43.02
- Type
- journal article
- Language
- en
- Open access
- green
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- Langbehn, J., Peng, Y., Trifunovic, L., von Oppen, F., & Brouwer, P. W. (2017). Reflection-Symmetric Second-Order Topological Insulators and Superconductors. Physical Review Letters. https://doi.org/10.1103/physrevlett.119.246401
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