We are exploring the quasi-particle- and the spin dynamics in semiconductor quantum structures. The materials of interest are either GaAs-AlGaAs quantum structures, like quantum wells or nanowires, or, two-dimensional crystals (transition-metal dichalcogenides), like MoS2, MoSe2, WS2, and WSe2, and their van-der-Waals heterostructures. As experimental techniques we are employing time- and spatially-resolved Kerr/Faraday rotation, time-resolved photoluminescence, Raman spectroscopy, and four-wave mixing. The experiments are typically carried out at low temperatures, and, optionally, in high magnetic fields.
|December 2021||Our work on "Intersubband excitations in ultrathin core-shell nanowires in the one-dimensional quantum limit probed by resonant inelastic light scattering" is published in Physical Review B.|
|September 2021||Our work on "Ultrafast Charge-Transfer Dynamics in Twisted MoS2/WSe2 Heterostructures" is published in ACS Nano.|
|July 2021||Our work on "Large-Scale Mapping of Moiré Superlattices by Hyperspectral Raman Imaging" is published in Advanced Materials.|
|May 2021||Our work on "Moiré phonons in twisted MoSe2–WSe2 heterobilayers and their correlation with interlayer excitons" is published in 2D Materials.|
|July 2020||Our work on "Low-frequency Raman scattering in WSe2-MoSe2 heterobilayers: Evidence for atomic reconstruction" is published in Applied Physics Letters.|
|January 2020||Our work on "Inelastic light scattering by intrasubband spin-density excitations in GaAs-AlGaAs quantum wells with balanced Bychkov-Rashba and Dresselhaus spin-orbit coupling: Quantitative determination of the spin-orbit field" is published in Physical Review B.|