Robustness of topologically protected surface states in layering of Bi 2Te3 thin films. Park, K., Heremans, J., J., Scarola, V., W., & Minic, D. Physical Review Letters, 105(18):186801, 2010. ![Robustness of topologically protected surface states in layering of Bi 2Te3 thin films [link]](https://bibbase.org/img/filetypes/link.svg "link")
Website doi abstract bibtex 2 downloads Bulk Bi2Te3 is known to be a topological insulator. We investigate surface states of Bi2Te3(111) thin films of one to six quintuple layers using density-functional theory including spin-orbit coupling. We construct a method to identify topologically protected surface states of thin film topological insulators. Applying this method to Bi2Te3 thin films, we find that the topological nature of the surface states remains robust with the film thickness and that the films of three or more quintuple layers have topologically nontrivial surface states, which agrees with experiments.
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abstract = {Bulk Bi2Te3 is known to be a topological insulator. We investigate surface states of Bi2Te3(111) thin films of one to six quintuple layers using density-functional theory including spin-orbit coupling. We construct a method to identify topologically protected surface states of thin film topological insulators. Applying this method to Bi2Te3 thin films, we find that the topological nature of the surface states remains robust with the film thickness and that the films of three or more quintuple layers have topologically nontrivial surface states, which agrees with experiments.},
bibtype = {article},
author = {Park, Kyungwha and Heremans, J. J. and Scarola, V. W. and Minic, Djordje},
doi = {10.1103/PhysRevLett.105.186801},
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Downloads: 2
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