Topological Surface State Evolution in Bi$_2$Se$_3$ via Surface Etching Article Swipe
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2409.12423
Topological insulators are materials with an insulating bulk interior while maintaining gapless boundary states against back scattering. Bi$_2$Se$_3$ is a prototypical topological insulator with a Dirac-cone surface state around $Γ$. Here, we present a controlled methodology to gradually remove Se atoms from the surface Se-Bi-Se-Bi-Se quintuple layers, eventually forming bilayer-Bi on top of the quintuple bulk. Our method allows us to track the topological surface state and confirm its robustness throughout the surface modification. Importantly, we report a relocation of the topological Dirac cone in both real space and momentum space, as the top surface layer transitions from quintuple Se-Bi-Se-Bi-Se to bilayer-Bi. Additionally, charge transfer among different surface layers is identified. Our study provides a precise method to manipulate surface configurations, allowing for the fine-tuning of the topological surface states in Bi$_2$Se$_3$, which represents a significant advancement towards nano-engineering of topological states.
Related Topics
- Type
- preprint
- Language
- en
- Landing Page
- http://arxiv.org/abs/2409.12423
- https://arxiv.org/pdf/2409.12423
- OA Status
- green
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4403747209
Raw OpenAlex JSON
- OpenAlex ID
-
https://openalex.org/W4403747209Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.48550/arxiv.2409.12423Digital Object Identifier
- Title
-
Topological Surface State Evolution in Bi$_2$Se$_3$ via Surface EtchingWork title
- Type
-
preprintOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2024Year of publication
- Publication date
-
2024-09-19Full publication date if available
- Authors
-
Ziqin Yue, Jianwei Huang, Ruohan Wang, Jia-Wan Li, Hongtao Rong, Yucheng Guo, Han Wu, Yichen Zhang, Junichiro Kono, Xingjiang Zhou, Yusheng Hou, Ruqian Wu, Ming YiList of authors in order
- Landing page
-
https://arxiv.org/abs/2409.12423Publisher landing page
- PDF URL
-
https://arxiv.org/pdf/2409.12423Direct link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
greenOpen access status per OpenAlex
- OA URL
-
https://arxiv.org/pdf/2409.12423Direct OA link when available
- Concepts
-
Surface (topology), State (computer science), Etching (microfabrication), Topology (electrical circuits), Surface states, Materials science, Mathematics, Geometry, Nanotechnology, Combinatorics, Layer (electronics), AlgorithmTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
0Total citation count in OpenAlex
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.Importantly, | 74 |
| abstract_inverted_index.prototypical | 20 |
| abstract_inverted_index.Additionally, | 102 |
| abstract_inverted_index.Bi$_2$Se$_3$, | 131 |
| abstract_inverted_index.modification. | 73 |
| abstract_inverted_index.Se-Bi-Se-Bi-Se | 44, 99 |
| abstract_inverted_index.configurations, | 120 |
| abstract_inverted_index.nano-engineering | 138 |
| cited_by_percentile_year | |
| countries_distinct_count | 0 |
| institutions_distinct_count | 13 |
| citation_normalized_percentile |