310 citations · 1.6k across the 18 of their papers we have counts for
15 papers · 1 filter
Control of Raman scattering quantum interference pathways in graphene
Xue Chen, Sven Reichardt, Miao-Ling Lin +8
Graphene is an ideal platform to study the coherence of quantum interference pathways by tuning doping or laser excitation energy. The latter produces a Raman excitation profile th…
Intrinsic control of interlayer exciton generation rate in van der Waals materials via Janus layers
Engin Torun, Fulvio Paleari, Milorad V. Milosevic +2
We demonstrate the possibility of engineering the optical properties of transition metal dichalcogenide heterobilayers when one of the constitutive layers has a Janus structure. Th…
Raman imaging of twist angle variations in twisted bilayer graphene at intermediate angles
A. Schäpers, J. Sonntag, L. Valerius +9
Van der Waals layered materials with well-defined twist angles between the crystal lattices of individual layers have attracted increasing attention due to the emergence of unexpec…
Non-adiabatic exciton-phonon coupling in Raman spectroscopy of layered materials
Sven Reichardt, Ludger Wirtz
We present an ab initio computational approach for the calculation of resonant Raman intensities, including both excitonic and non-adiabatic effects. Our diagrammatic approach, whi…
Theory of resonant Raman scattering: Toward a comprehensive \textit{ab initio} description
Sven Reichardt, Ludger Wirtz
We develop a general, fully quantum mechanical theory of Raman scattering from first principles in terms of many-body correlation functions. In order to arrive at expressions that…
Impact of Many-Body Effects on Landau Levels in Graphene
J. Sonntag, S. Reichardt, L. Wirtz +4
We present magneto-Raman spectroscopy measurements on suspended graphene to investigate the charge carrier density-dependent electron-electron interaction in the presence of Landau…