<div class="csl-bib-body">
<div class="csl-entry">Taupin, M., Eguchi, G., Lužnik, M., Steiger-Thirsfeld, A., Ishida, Y., Kuroda, K., Shin, S., Kimura, A., & Paschen, S. (2023). Boosting the surface conduction in a topological insulator. <i>Physical Review B</i>, <i>107</i>(23), Article 235306. https://doi.org/10.1103/PhysRevB.107.235306</div>
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dc.identifier.issn
2469-9950
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/191099
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dc.description.abstract
The protected surface conduction of topological insulators is in high demand for the next generation of electronic devices. What is needed to move forward are robust settings where topological surface currents can be controlled by simple means, ideally by the application of external stimuli. Surprisingly, this direction is only a little explored. In this work we demonstrate that we can boost the surface conduction of a topological insulator by both light and electric field. This happens in a fully controlled way and the additional Dirac carriers exhibit ultralong lifetimes. We provide a comprehensive understanding, namely that carriers are injected from the bulk to the surface states across an intrinsic Schottky barrier. We expect this mechanism to be at play in a broad range of materials and experimental settings.
en
dc.description.sponsorship
FWF - Österr. Wissenschaftsfonds
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dc.description.sponsorship
FWF - Österr. Wissenschaftsfonds
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dc.description.sponsorship
European Commission
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dc.language.iso
en
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dc.publisher
AMER PHYSICAL SOC
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dc.relation.ispartof
Physical Review B
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dc.subject
solid state physics
en
dc.subject
intermetallic compounds
en
dc.subject
strongly correlated electron systems
en
dc.title
Boosting the surface conduction in a topological insulator