77 citations · 237 across the 13 of their papers we have counts for
13 papers
Resonant Raman signatures of bright and momentum-dark exciton coupled by intervalley phonon scattering in monolayer WSe2
Hendrik Lambers, Nihit Saigal, Lara Blinov +3
Exciton-phonon coupling in atomically thin transition metal dichalcogenides governs key processes such as exciton thermalization and intervalley scattering and remains challenging…
High-Energy Interlayer Exciton Ensembles in MoSe/WSe Heterostructures by Laguerre-Gaussian Excitation
Mirco Troue, Johannes Figueiredo, Gabriel Mittermair +7
We reveal the higher energetic luminescence part of interlayer exciton ensembles in MoSe/WSe heterostructures upon excitation by an optical Laguerre-Gaussian mode. The exci…
Laterally Extended States of Interlayer Excitons in Reconstructed MoSe/WSe Heterostructures
Johannes Figueiredo, Marten Richter, Mirco Troue +8
Heterostructures made from 2D transition-metal dichalcogenides are known as ideal platforms to explore excitonic phenomena ranging from correlated moiré excitons to degenerate inte…
Exciton-phonon-scattering: A competition between bosonic and fermionic nature of bound electron-hole pairs
Manuel Katzer, Malte Selig, Lukas Sigl +7
The question of macroscopic occupation and spontaneous emergence of coherence for exciton ensembles has gained renewed attention due to the rise of van der Waals heterostructures m…
Ultra-Sensitive Extinction Measurements of Optically Active Defects in Monolayer MoS
Florian Sigger, Ines Amersdorffer, Alexander Hötger +12
We utilize cavity-enhanced extinction spectroscopy to directly quantify the optical absorption of defects in MoS generated by helium ion bombardment. We achieve hyperspectral i…
Optical dipole orientation of interlayer excitons in MoSe-WSe heterostacks
Lukas Sigl, Mirco Troue, Manuel Katzer +10
We report on the far-field photoluminescence intensity distribution of interlayer excitons in MoSe-WSe heterostacks as measured by back focal plane imaging in the tempe…
Berry curvature-induced local spin polarisation in gated graphene/WTe heterostructures
Lukas Powalla, Jonas Kiemle, Elio J. König +6
Full experimental control of local spin-charge interconversion is of primary interest for spintronics. Heterostructures combining graphene with a strongly spin-orbit coupled two-di…
Photo-physics and electronic structure of lateral graphene/MoS2 and metal/MoS2 junctions
Shruti Subramanian, Quinn T. Campbell, Simon Moser +18
Integration of semiconducting transition metal dichalcogenides (TMDs) into functional optoelectronic circuitries requires an understanding of the charge transfer across the interfa…
Condensation signatures of photogenerated interlayer excitons in a van der Waals heterostack
Lukas Sigl, Florian Sigger, Fabian Kronowetter +7
Atomistic van der Waals heterostacks are ideal systems for high-temperature exciton condensation because of large exciton binding energies and long lifetimes. Charge transport and…
Control of the orbital character of indirect excitons in MoS2/WS2 heterobilayers
Jonas Kiemle, Florian Sigger, Michael Lorke +5
Valley selective hybridization and residual coupling of electronic states in commensurate van der Waals heterobilayers enable the control of the orbital character of interlayer exc…
Impact of intrinsic and extrinsic imperfections on the electronic and optical properties of MoS2
J. Klein, A. Kerelsky, M. Lorke +11
Intrinsic and extrinsic disorder from lattice imperfections, substrate and environment has a strong effect on the local electronic structure and hence the optical properties of ato…
Hybridized indirect excitons in MoS2/WS2 heterobilayers
Jonas Kiemle, Florian Sigger, Michael Lorke +5
Ensembles of indirect or interlayer excitons (IXs) are intriguing systems to explore classical and quantum phases of interacting bosonic ensembles. IXs are composite bosons that fe…
Photo-induced anomalous Hall effect in the type-II Weyl-semimetal WTe2 at room-temperature
Paul Seifert, Florian Sigger, Jonas Kiemle +5
Using Hall photovoltage measurements, we demonstrate that an anomalous Hall-voltage can be induced in few layer WTe2 under circularly polarized light illumination. By applying a bi…