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Spatial extent of the excited exciton states in WS monolayers from diamagnetic shifts
Jonas Zipfel, Johannes Holler, Anatolie A. Mitioglu +9
We experimentally study the radii of excitons in hBN-encapsulated WS2 monolayers by means of magneto-optical reflectance spectroscopy at cryogenic temperatures in magnetic fields u…
Breakdown of the static approximation for free carrier screening of excitons in monolayer semiconductors
Mikhail M. Glazov, Alexey Chernikov
We address the problem of free carrier screening of exciton states in two-dimensional monolayer semiconductors. Basic theoretical considerations are presented concerning the applic…
Direct observation of ultrafast exciton formation in monolayer WSe
Philipp Steinleitner, Philipp Merkl, Philipp Nagler +5
Many of the fundamental optical and electronic properties of atomically thin transition metal dichalcogenides are dominated by strong Coulomb interactions between electrons and hol…
Dielectric Engineering of Electronic Correlations in a van der Waals Heterostructure
Philipp Steinleitner, Philipp Merkl, Alexander Graf +10
Heterostructures of van der Waals bonded layered materials offer unique means to tailor dielectric screening with atomic-layer precision, opening a fertile field of fundamental res…
Exciton diffusion and halo effects in monolayer semiconductors
Marvin Kulig, Jonas Zipfel, Philipp Nagler +6
We directly monitor exciton propagation in freestanding and SiO2-supported WS2 monolayers through spatially- and time-resolved micro-photoluminescence under ambient conditions. We…
Zeeman Splitting and Inverted Polarization of Biexciton Emission in Monolayer WS2
Philipp Nagler, Mariana V. Ballottin, Anatolie A. Mitioglu +8
We investigate the magnetic-field-induced splitting of biexcitons in monolayer WS using polarization-resolved photoluminescence spectroscopy in out-of-plane magnetic fields up…