3 papers
cond-mat.mtrl-sci2025
Photoemission tomography of excitons in 2D systems: momentum-space signatures of correlated electron-hole wave functions
Siegfried Kaidisch, Amir Kleiner, Sivan Refaely-Abramson +2
The momentum-space signatures of excitons can be experimentally accessed through time-resolved (pump-probe) photoelectron spectroscopy. In this work, we develop a computational fra…
cond-mat.mtrl-sci2025
Strain-induced exciton mobility in layered WS2 from first principles
Amir Kleiner, Sivan Refaely-Abramson
Exciton mobility in two-dimensional semiconductors is a key ingredient in materials-based design of optoelectronic functionalities. Monolayer transition metal dichalcogenides (TMDs…
cond-mat.mtrl-sci2024
Designable exciton mixing through layer alignment in WS-graphene heterostructures
Amir Kleiner, Daniel Hernangómez-Pérez, Sivan Refaely-Abramson
Optical properties of heterostructures composed of layered 2D materials, such as transition metal dichalcogenides (TMDs) and graphene, are broadly explored. Of particular interest…