130 citations · 433 across the 20 of their papers we have counts for
21 papers
Unveiling Ultrafast Spin-Valley Dynamics and Phonon-Mediated Charge Transfer in MoSe/WSe Heterostructures
Julian Wagner, Robin Bernhardt, Lukas Rieland +7
We use helicity-resolved ultrafast transient absorption spectroscopy to study spin-valley polarization dynamics in a vertically stacked MoSe/WSe heterostructure. The ex…
Resonance-Induced Anomalies in Temperature-Dependent Raman Scattering of PdSe
Omar Abdul-Aziz, Daniel Wolverson, Charles Sayers +4
We report a comprehensive Raman study of the phonon behaviour in PdSe in the temperature range of 5 K to 300 K. A remarkable change in the Raman spectrum is observed at 120 K:…
Ultrafast Optical Control of Exciton Diffusion in WSe/Graphene Heterostructures Revealed by Heterodyne Transient Grating Spectroscopy
Lukas Rieland, Julian Wagner, Robin Bernhardt +8
Using heterodyne transient grating spectroscopy, we observe a significant enhancement of exciton diffusion within a monolayer WSe stacked on top of graphene. We further demonst…
Nonequilibrium dynamics of -RuCl -- a time-resolved magneto-optical spectroscopy study
Julian Wagner, Anuja Sahasrabudhe, Rolf Versteeg +5
We present time-resolved magneto-optical spectroscopy on the magnetic Mott-Hubbard-insulating Kitaev spin liquid candidate -RuCl to investigate the nonequilibrium dynamics o…
Magneto-optical study of metamagnetic transitions in the antiferromagnetic phase of -RuCl
Julian Wagner, Anuja Sahasrabudhe, Rolf Versteeg +7
-RuCl is a promising candidate material to realize the so far elusive quantum spin liquid ground state. However, at low temperatures, the coexistence of different exchange i…
Nonequilibrium quasistationary spin disordered state in the Kitaev-Heisenberg magnet -RuCl
R. B. Versteeg, A. Chiocchetta, F. Sekiguchi +9
Excitation by light pulses enables the manipulation of phases of quantum condensed matter. Here, we photoexcite high-energy holon-doublon pairs as a way to alter the magnetic free…