Capacitively-coupled and inductively-coupled excitons in bilayer MoS${}_2$

Abstract

The interaction of intralayer and interlayer excitons is studied in a two-dimensional semiconductor, homobilayer MoS${}_2$. It is shown that the measured optical susceptibility reveals both the magnitude and the sign of the coupling constants. The interlayer exciton interacts capacitively with the intralayer B-exciton (positive coupling constant) consistent with hole tunnelling from one monolayer to the other. Conversely, the interlayer exciton interacts inductively with the intralayer A-exciton (negative coupling constant). First-principles many-body calculations show that this coupling arises via an intravalley exchange-interaction of A- and B-excitons.

arXiv commentMain text: 6 pages, 4 figures; Supplementary Information: 17 pages, 15 figures

References in corpus (28)

• Atomically thin MoS2: A new direct-gap semiconductor
• Wannier90: A Tool for Obtaining Maximally-Localised Wannier Functions
• Exciton Binding Energy and Nonhydrogenic Rydberg Series in Monolayer WS2
• Resonantly hybridised excitons in moiré superlattices in van der Waals heterostructures
• Non-linear Optical Spectroscopy of Excited Exciton States for Efficient Valley Coherence Generation in WSe2 Monolayers
• Moiré superlattice in a MoSe${}_2$/hBN/MoSe${}_2$ heterostructure: from coherent coupling of inter- and intra-layer excitons to correlated Mott-like states of electrons
• Fast pick up technique for high quality heterostructures of bilayer graphene and hexagonal boron nitride
• Quantum correlations of confined exciton-polaritons
• Interlayer coupling in commensurate and incommensurate bilayer structures of transition metal dichalcogenides
• Broken mirror symmetry in excitonic response of reconstructed domains in twisted MoSe${}_2$/MoSe${}_2$ bilayers
• Quantum-correlated photons from semiconductor cavity polaritons
• Interlayer hybridization and moiré superlattice minibands for electrons and excitons in heterobilayers of transition-metal dichalcogenides
• Interlayer excitons in bilayer MoS2 with strong oscillator strength up to room temperature
• Exciton-exciton interaction in transition-metal dichalcogenide monolayers
• Giant Stark splitting of an exciton in bilayer MoS${}_2$
• Direct and indirect excitons in semiconductor coupled quantum wells in an applied electric field
• Spin-Polarized Electrons in Monolayer MoS${}_2$
• Giant paramagnetism induced valley polarization of electrons in charge-tunable monolayer MoSe2
• Interacting Polaron-Polaritons
• Exciton-exciton interaction in transition metal dichalcogenide monolayers and van der Waals heterostructures
• Gatemon Benchmarking and Two-Qubit Operation
• Quantum confined Stark effect in a MoS${}_2$ monolayer van der Waals heterostructure
• Dipolar and magnetic properties of strongly absorbing hybrid interlayer excitons in pristine bilayer MoS${}_2$
• The Classical Bloch Equations
• Control of the orbital character of indirect excitons in MoS2/WS2 heterobilayers
• Absence of inter-layer tunnel coupling of $K$-valley electrons in bilayer MoS${}_2$
• Superposition of intra- and inter-layer excitons in twistronic MoSe${}_2$/WSe${}_2$ bilayers probed by resonant Raman scattering
• Nonlinear optical spectroscopy of indirect excitons in biased coupled quantum wells

Cited by in corpus (8)

• Highly Tunable Ground and Excited State Excitonic Dipoles in Multilayer 2H-MoSe${}_2$
• Optical signatures of interlayer electron coherence in a bilayer semiconductor
• Electrically tunable layer-hybridized trions in doped WSe${}_2$ bilayers
• Quadrupolar and Dipolar Excitons in Bilayer 2$H$-MoSe${}_2$
• Two dimensional semiconductors: optical and electronic properties
• Electrically tunable and enhanced nonlinearity of moiré exciton-polaritons in transition metal dichalcogenide bilayers
• Brightening interlayer excitons by electric-field-driven hole transfer in bilayer WSe2
• Room-temperature tuning and probing of Fermi polarons in atomically thin semiconductors on a plasmonic metasurface