Dresden 2020 – wissenschaftliches Programm
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SYSD: Symposium SKM Dissertation Prize 2020
SYSD 1: SKM Dissertation Prize
SYSD 1.1: Hauptvortrag
Montag, 16. März 2020, 09:30–09:55, HSZ 02
Disentangling transport in topological insulator thin films down to the nanoscale — •Felix Lüpke — Peter Grünberg Institut (PGI-3) and JARA-FIT, Forschungszentrum Jülich, 52425 Jülich, Germany — Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831-6487, USA — Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA
Three-dimensional topological insulators (TIs) are prime candidate materials for applications in future electronic devices, such as quantum computers, due to the unique electronic properties of their two-dimensional topological surface states (TSS). In epitaxial TI thin films there are several parallel conduction channels which can contribute to the charge transport and which are difficult to disentangle in transport experiments. In my talk, I demonstrate the use of multi-tip scanning tunneling microscopy to systematically analyze the charge transport properties of pristine epitaxial BiSbTe3 thin films under ultra-high vacuum conditions and down to the nanoscale.