237 citations · 1.2k across the 35 of their papers we have counts for
8 papers · 1 filter
Molecular order induced charge transfer in a C-topological insulator moiré heterostructure
Ram Prakash Pandeya, Konstantin P. Shchukin, Yannic Falke +9
We synthesize and spectroscopically investigate monolayer C on the topological insulator (TI) BiTe. This C/BiTe heterostructure is characterized by ex…
Thermally activated diffusion and lattice relaxation in (Si)GeSn materials
Nils von den Driesch, Stephan Wirths, Rene Troitsch +5
Germanium-Tin (GeSn) alloys have emerged as a promising material for future optoelectronics, energy harvesting and nanoelectronics owing to their direct bandgap and compatibility w…
Influence of Te-doping on self-catalyzed VS InAs nanowires
Nicholas A. Güsken, Torsten Rieger, Gregor Mussler +2
We report on growth of Te-doped self-catalyzed InAs nanowires by molecular beam epitaxy on silicon (111) substrates. Changes in the wire morphology, i.e. a decrease in length and a…
$\mbox{Bi}_{1}\mbox{Te}_{1}$: a dual topological insulator
Markus Eschbach, Martin Lanius, Chengwang Niu +15
A combined theoretical and experimental study reveals evidence for the dual topological insulating character of the stoichiometric natural superlattice phase $\mathrm{Bi_{1}Te_{1}}…
Ultrafast photocurrents at the surface of the three-dimensional topological insulator
Lukas Braun, Gregor Mussler, Andrzej Hruban +6
Topological insulators constitute a new and fascinating class of matter with insulating bulk yet metallic surfaces that host highly mobile charge carriers with spin-momentum lockin…
Growth, characterization, and transport properties of ternary (Bi1-xSbx)2Te3 topological insulator layers
C. Weyrich, M. Drögeler, J. Kampmeier +12
Ternary (Bi1-xSbx)2Te3 films with an Sb content between 0 and 100% were deposited on a Si(111) substrate by means of molecular beam epitaxy. X-ray diffraction measurements confirm…
Tuning the Dirac point to the Fermi level in the ternary topological insulator (BiSb)Te
Jens Kellner, Markus Eschbach, Jörn Kampmeier +9
In order to stabilize Majorana excitations within vortices of proximity induced topological superconductors, it is mandatory that the Dirac point matches the Fermi level rather exa…
Robust surface electronic properties of topological insulators: Bi2Te3 films grown by molecular beam epitaxy
L. Plucinski, G. Mussler, J. Krumrain +3
The surface electronic properties of the important topological insulator Bi2Te3 are shown to be robust under an extended surface preparation procedure which includes exposure to at…