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Electrically tunable band gap in silicene
Open accessAbstract
We report calculations of the electronic structure of silicene and the stability of its weakly buckled honeycomb lattice in an external electric field oriented perpendicular to the monolayer of Si atoms. The electric field produces a tunable band gap in the Dirac-type electronic spectrum, the gap being suppressed by a factor of about eight by the high polarizability of the system. At low electric fields, the interplay between this tunable band gap, which is specific to electrons on a honeycomb lattice, and the Kane-Mele spin-orbit coupling induces a transition from a topological to a band insulator, whereas at much higher electric fields silicene becomes a semimetal.
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Cites
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Cited by
Colloquium : Topological band theory
Bansil, A., Lin, H., & Das, T. (2016) · Reviews of Modern Physics · doi:10.1103/revmodphys.88.021004 · Cited by 1,587
Arsenene: Two-dimensional buckled and puckered honeycomb arsenic systems
Kamal, C., & Ezawa, M. (2015) · Physical Review B · doi:10.1103/physrevb.91.085423 · Cited by 874
Two-dimensional transistors beyond graphene and TMDCs
Liu, Y., Duan, X., Huang, Y., & Duan, X. (2018) · Chemical Society Reviews · doi:10.1039/c8cs00318a · Cited by 474
Intrinsic electrical transport properties of monolayer silicene and MoS2from first principles
Li, X., Mullen, J. T., Jin, Z., Borysenko, K. M., Buongiorno Nardelli, M., & Kim, K. W. (2013) · Physical Review B · doi:10.1103/physrevb.87.115418 · Cited by 462
Gated silicene as a tunable source of nearly 100% spin-polarized electrons
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Metadata
- Authors
- Drummond, N. D., Zólyomi, V., & Fal'ko, V. I.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 2012-02-22
- Volume
- 85
- Issue
- 7
- ISSN
- 1098-0121 (ISSN-L)
- 1550-235X
- OpenAlex
- W2072935319
- Cited by
- 1,169
- References
- 6
- FWCI
- 41.41
- Type
- journal article
- Language
- en
- Open access
- green
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- Drummond, N. D., Zólyomi, V., & Fal'ko, V. I. (2012). Electrically tunable band gap in silicene. Physical Review B. https://doi.org/10.1103/physrevb.85.075423
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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