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A. Georgi
Researcher at RWTH Aachen University
Publications - 11
Citations - 444
A. Georgi is an academic researcher from RWTH Aachen University. The author has contributed to research in topics: Graphene & Scanning tunneling microscope. The author has an hindex of 7, co-authored 11 publications receiving 386 citations.
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Journal ArticleDOI
Tuning the Pseudospin Polarization of Graphene by a Pseudomagnetic Field
A. Georgi,Péter Nemes-Incze,Ramon Carrillo-Bastos,Ramon Carrillo-Bastos,Daiara Faria,Daiara Faria,Silvia Viola Kusminskiy,Silvia Viola Kusminskiy,Dawei Zhai,Martin Schneider,D. Subramaniam,T. Mashoff,Nils M. Freitag,Marcus Liebmann,Marco Pratzer,Ludger Wirtz,Colin R. Woods,Roman V. Gorbachev,Yang Cao,Kostya S. Novoselov,Nancy Sandler,Markus Morgenstern +21 more
TL;DR: It is shown that a signature of the pseudomagnetic field is a local sublattice symmetry breaking observable as a redistribution of the local density of states in graphene, which can be interpreted as a polarization of graphene's pseudospin due to a strain induced pseudom magnetic field.
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Networks of ABA and ABC stacked graphene on mica observed by scanning tunneling microscopy
TL;DR: In this article, a triangular network of partial dislocations separating ABC stacked and ABA stacked graphene was found similar to the networks occasionally visible on freshly cleaved HOPG.
Journal ArticleDOI
Probing two topological surface bands of Sb 2 Te 3 by spin-polarized photoemission spectroscopy
Christian Pauly,Gustav Bihlmayer,Marcus Liebmann,Martin Grob,A. Georgi,D. Subramaniam,M. R. Scholz,Jaime Sánchez-Barriga,Andrei Varykhalov,Stefan Blügel,Oliver Rader,Markus Morgenstern +11 more
TL;DR: In this paper, the electronic structure and spin texture of the surface states of the topological insulator Sb${}_{2}$Te${}-3} were mapped using high-resolution spin and angle-resolved photoemission spectroscopy.
Journal ArticleDOI
Electrical transport and low-temperature scanning tunneling microscopy of microsoldered graphene
V. Geringer,D. Subramaniam,A. K. Michel,B. N. Szafranek,Daniel Schall,A. Georgi,T. Mashoff,Daniel Neumaier,Marcus Liebmann,Markus Morgenstern +9 more
TL;DR: In this paper, the influence of polymethylmethacrylate on graphene has been investigated using micro-soldering, revealing a doping effect with a n-type dopant density Δn of up to Δn=3.8×1012 cm−2 but negligible influence on mobility and hysteresis.
Journal ArticleDOI
Electrical transport and low-temperature scanning tunneling microscopy of microsoldered graphene
V. Geringer,D. Subramaniam,A. K. Michel,B. N. Szafranek,Daniel Schall,A. Georgi,T. Mashoff,Daniel Neumaier,Marcus Liebmann,Markus Morgenstern +9 more
TL;DR: In this paper, the influence of PMMA on graphene flakes was investigated using micro-soldering, revealing a doping effect of up to 3.8x10^12 1/cm^2, but negligible influence on mobility and gate voltage induced hysteresis.