Stable bismuth sub-monolayer termination of Bi2Se3
| Autor: | Ryszard Zdyb, Maciej Bazarnik, A. Hruban, Marian W. Radny, Wojciech Koczorowski, Michał Hermanowicz, Ryszard Czajka, A. Materna, M. Kopciuszyński |
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| Rok vydání: | 2019 |
| Předmět: |
Surface (mathematics)
Work (thermodynamics) Materials science General Physics and Astronomy chemistry.chemical_element 02 engineering and technology Surfaces and Interfaces General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films Bismuth chemistry.chemical_compound chemistry Chemical physics Topological insulator Desorption Monolayer Bismuth selenide Density functional theory 0210 nano-technology |
| Zdroj: | Applied Surface Science. 476:701-705 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2019.01.011 |
| Popis: | Surface electronic properties of Bi2Se3 and Bi2Te3 topological insulators are known to evolve with varying surface termination. In this work, the (1 1 1) surface of Bi2Se3 has been studied with a comprehensive combination of experimental and computational (density functional theory) methods. It has been demonstrated that with proper preparation conditions the system can be forced into a new stable surface termination – a sub-monolayer of bismuth acquired through selective Se desorption – which has not been explored yet. |
| Databáze: | OpenAIRE |
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