1. Coherent exciton-exciton interactions and exciton dynamics in a MoSe\textsubscript{2}/WSe\textsubscript{2} heterostructure
- Author
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Purz, Torben L., Martin, Eric W., Rivera, Pasqual, Holtzmann, William G., Xu, Xiaodong, and Cundiff, Steven T.
- Subjects
Condensed Matter::Materials Science ,Condensed Matter - Materials Science ,Quantum Physics ,Condensed Matter - Mesoscale and Nanoscale Physics ,Mesoscale and Nanoscale Physics (cond-mat.mes-hall) ,Materials Science (cond-mat.mtrl-sci) ,FOS: Physical sciences ,Quantum Physics (quant-ph) ,Condensed Matter::Mesoscopic Systems and Quantum Hall Effect - Abstract
Coherent coupling between excitons is at the heart of many-body interactions with transition metal dichalcogenide (TMD) heterostructures as an emergent platform for the investigation of these interactions. We employ multi-dimensional coherent spectroscopy on monolayer MoSe\textsubscript{2}/WSe\textsubscript{2} heterostructures and observe coherent coupling between excitons spatially localized in monolayer MoSe$_2$ and WSe$_2$. Through many-body spectroscopy, we further observe the absorption state arising from free interlayer electron-hole pairs. This observation yields a spectroscopic measurement of the interlayer exciton binding energy of about 250 meV.
- Published
- 2021