Single-Dirac-Cone Topological Surface States in theTlBiSe2Class of Topological Semiconductors
Open accessAbstract
We investigate several strong spin-orbit coupling ternary chalcogenides related to the (Pb,Sn)Te series of compounds. Our first-principles calculations predict the low-temperature rhombohedral ordered phase in TlBiTe₂, TlBiSe₂, and TlSbX₂ (X=Te, Se, S) to be topologically nontrivial. We identify the specific surface termination that realizes the single Dirac cone through first-principles surface state computations. This termination minimizes effects of dangling bonds, making it favorable for photoemission experiments. In addition, our analysis predicts that thin films of these materials could harbor novel 2D quantum spin Hall states, and support odd-parity topological superconductivity.
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- Authors
- Lin, H., Markiewicz, R. S., Wray, L. A., Fu, L., Hasan, M. Z., & Bansil, A.
- Affiliations
- Northeastern University (US)
- Princeton University (US)
- Harvard University (US)
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2010-07-16
- Volume
- 105
- Issue
- 3
- Pages
- 036404-036404
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1899196235
- Cited by
- 203
- References
- 5
- Citations by year
- 2026: 7 · 2025: 8 · 2024: 3 · 2023: 5 · 2022: 8 · 2021: 7 · 2020: 7 · 2019: 4 · 2018: 8 · 2017: 9 · 2016: 12 · 2015: 18 · 2014: 14 · 2013: 25 · 2012: 26
- FWCI
- 15.95
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Physical Review Letters (publishedVersion)
- PubMed (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- arXiv (Cornell University)
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Topological Materials and Phenomena
- Physical Sciences › Materials Science › Materials Chemistry › 2D Materials and Applications
- Physical Sciences › Physics and Astronomy › Condensed Matter Physics › Advanced Condensed Matter Physics
- Keywords
- topological surface states, TlBiSe2, ternary chalcogenide, spin-orbit coupling, rhombohedral phase, surface termination, dangling bonds, topological superconductivity, odd-parity superconductivity, thin films
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