235 citations · 1.6k across the 48 of their papers we have counts for
7 papers · 1 filter
Thermal expansion and temperature dependence of Raman modes in epitaxial layers of Ge and GeSn
Agnieszka Anna Corley-Wiciak, Diana Ryzhak, Marvin Hartwig Zoellner +7
Temperature dependence of vibrational modes in semiconductors depends on lattice thermal expansion and anharmonic phonon-phonon scattering. Evaluating the two contributions from ex…
Optical properties of MoSe monolayer implanted with ultra-low energy Cr ions
Minh N. Bui, Stefan Rost, Manuel Auge +10
The paper explores the optical properties of an exfoliated MoSe monolayer implanted with Cr ions, accelerated to 25 eV. Photoluminescence of the implanted MoSe reveals…
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…
$\mbox{Bi}_{1}\mbox{Te}_{1}$: 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}}…
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…