| Autor: |
Fabian, Mooshammer, Fabian, Sandner, Markus A, Huber, Martin, Zizlsperger, Helena, Weigand, Markus, Plankl, Christian, Weyrich, Martin, Lanius, Jörn, Kampmeier, Gregor, Mussler, Detlev, Grützmacher, Jessica L, Boland, Tyler L, Cocker, Rupert, Huber |
| Rok vydání: |
2018 |
| Zdroj: |
Nano letters. 18(12) |
| ISSN: |
1530-6992 |
| Popis: |
Three-dimensional topological insulators (TIs) have attracted tremendous interest for their possibility to host massless Dirac Fermions in topologically protected surface states (TSSs), which may enable new kinds of high-speed electronics. However, recent reports have outlined the importance of band bending effects within these materials, which results in an additional two-dimensional electron gas (2DEG) with finite mass at the surface. TI surfaces are also known to be highly inhomogeneous on the nanoscale, which is masked in conventional far-field studies. Here, we use near-field microscopy in the mid-infrared spectral range to probe the local surface properties of custom-tailored (Bi |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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