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@ARTICLE{Lpke:829655,
author = {Lüpke, Felix and Eschbach, Markus and Heider, Tristan and
Lanius, Martin and Schüffelgen, Peter and Rosenbach, Daniel
and von den Driesch, Nils and Cherepanov, Vasily and
Mussler, Gregor and Plucinski, Lukasz and Grützmacher,
Detlev and Schneider, Claus Michael and Voigtländer, Bert},
title = {{E}lectrical resistance of individual defects on a
topological insulator surface},
journal = {Nature Communications},
volume = {},
issn = {2041-1723},
address = {London},
publisher = {Nature Publishing Group},
reportid = {FZJ-2017-03316},
pages = {15704},
year = {2017},
abstract = {Three-dimensional topological insulators host surface
states with linear dispersion, which manifest as a Dirac
cone. Nanoscale transport measurements provide direct access
to the transport properties of the Dirac cone in real space
and allow the detailed investigation of charge carrier
scattering. Here we use scanning tunnelling potentiometry to
analyse the resistance of different kinds of defects at the
surface of a (Bi0.53Sb0.47)2Te3 topological insulator thin
film. We find the largest localized voltage drop to be
located at domain boundaries in the topological insulator
film, with a resistivity about four times higher than that
of a step edge. Furthermore, we resolve resistivity dipoles
located around nanoscale voids in the sample surface. The
influence of such defects on the resistance of the
topological surface state is analysed by means of a resistor
network model. The effect resulting from the voids is found
to be small compared with the other defects.},
cin = {PGI-3},
ddc = {500},
cid = {I:(DE-Juel1)PGI-3-20110106},
pnm = {141 - Controlling Electron Charge-Based Phenomena
(POF3-141)},
pid = {G:(DE-HGF)POF3-141},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000403064600001},
pubmed = {pmid:28604672},
doi = {10.1038/ncomms15704},
url = {https://juser.fz-juelich.de/record/829655},
}