Colloquium: Excitons in atomically thin transition metal dichalcogenides
Atomically thin materials such as graphene and monolayer transition metal dichalcogenides
(TMDs) exhibit remarkable physical properties resulting from their reduced dimensionality …
(TMDs) exhibit remarkable physical properties resulting from their reduced dimensionality …
Valley Zeeman effect in elementary optical excitations of monolayer WSe2
A monolayer of a transition metal dichalcogenide such as WSe2 is a two-dimensional direct-
bandgap valley-semiconductor, having an effective honeycomb lattice structure with broken …
bandgap valley-semiconductor, having an effective honeycomb lattice structure with broken …
Exciton diamagnetic shifts and valley Zeeman effects in monolayer WS2 and MoS2 to 65 Tesla
In bulk and quantum-confined semiconductors, magneto-optical studies have historically
played an essential role in determining the fundamental parameters of excitons (size …
played an essential role in determining the fundamental parameters of excitons (size …
Magnetooptics of exciton Rydberg states in a monolayer semiconductor
We report 65 T magnetoabsorption spectroscopy of exciton Rydberg states in the archetypal
monolayer semiconductor WSe 2. The strongly field-dependent and distinct energy shifts of …
monolayer semiconductor WSe 2. The strongly field-dependent and distinct energy shifts of …
Resonant internal quantum transitions and femtosecond radiative decay of excitons in monolayer WSe2
C Pöllmann, P Steinleitner, U Leierseder, P Nagler… - Nature materials, 2015 - nature.com
Atomically thin two-dimensional crystals have revolutionized materials science,,. In
particular, monolayer transition metal dichalcogenides promise novel optoelectronic …
particular, monolayer transition metal dichalcogenides promise novel optoelectronic …
Berry phase modification to the energy spectrum of excitons
By quantizing the semiclassical motion of excitons, we show that the Berry curvature can
cause an energy splitting between exciton states with opposite angular momentum. This …
cause an energy splitting between exciton states with opposite angular momentum. This …
Intrinsic exciton-state mixing and nonlinear optical properties in transition metal dichalcogenide monolayers
Optical properties of transition metal dichalcogenides monolayers are controlled by Wannier-
Mott excitons forming a series of 1 s, 2 s, 2 p,... hydrogen-like states. We develop the theory …
Mott excitons forming a series of 1 s, 2 s, 2 p,... hydrogen-like states. We develop the theory …
Carbon nanotubes as excitonic insulators
Abstract Fifty years ago Walter Kohn speculated that a zero-gap semiconductor might be
unstable against the spontaneous generation of excitons–electron–hole pairs bound …
unstable against the spontaneous generation of excitons–electron–hole pairs bound …
Graphene and monolayer transition-metal dichalcogenides: properties and devices
2D materials play a special role in the race to make smaller and smaller devices. Their
unique and strong in-plane bonding makes them impervious to diffusion into other layers …
unique and strong in-plane bonding makes them impervious to diffusion into other layers …
Influence of the effective layer thickness on the ground-state and excitonic properties of transition-metal dichalcogenide systems
L Meckbach, T Stroucken, SW Koch - Physical Review B, 2018 - APS
A self-consistent scheme for the calculations of the interacting ground state and the near
band-gap optical spectra of mono-and multilayer transition-metal-dichalcogenide systems is …
band-gap optical spectra of mono-and multilayer transition-metal-dichalcogenide systems is …