Shubnikov-de Haas oscillations in optical conductivity of monolayer MoSe${}_2$

Abstract

We report polarization-resolved resonant reflection spectroscopy of a charge-tunable atomically-thin valley semiconductor hosting tightly bound excitons coupled to a dilute system of fully spin- and valley-polarized holes in the presence of a strong magnetic field. We find that exciton-hole interactions manifest themselves in hole-density dependent, Shubnikov-de Haas-like oscillations in the energy and line broadening of the excitonic resonances. These oscillations are evidenced to be precisely correlated with the occupation of Landau levels, thus demonstrating that strong interactions between the excitons and Landau-quantized itinerant carriers enable optical investigation of quantum-Hall physics in transition metal dichalcogenides.

arXiv commentMain text: 5 pages, 5 figures; Supplemental Material: 13 pages, 6 figures

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• Kinetic Magnetism in Triangular Moiré Materials
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• Electron-exciton interactions in the exciton-polaron problem
• Roadmap for Photonics with 2D Materials
• Measurement of Conduction and Valence Bands g-factors in a Transition Metal Dichalcogenide Monolayer
• Valley Zeeman effect and Landau levels in Two-Dimensional Transition Metal Dichalcogenides
• Hexcitons and oxcitons in monolayer WSe${}_2$
• Magnetooptics of layered two-dimensional semiconductors and heterostructures: progress and prospects
• Quantum Dynamics of Attractive and Repulsive Polarons in a Doped MoSe${}_2$ Monolayer
• Landau-quantized excitonic absorption and luminescence in a monolayer valley semiconductor
• Controlling exciton many-body states by the electric-field effect in monolayer MoS${}_2$
• Optical sensing of fractional quantum Hall effect in graphene
• Electron recoil effect in electrically tunable MoSe2 monolayers
• Chiral Pseudo Spin Liquids in Moire Heterostructures
• Spontaneous valley polarization of interacting carriers in a monolayer semiconductor
• Many-body exciton and inter-valley correlations in heavily electron-doped WSe${}_2$ monolayers
• Three-particle states and brightening of intervalley excitons in a doped MoS${}_2$ monolayer
• Mott-moiré excitons
• Valley polarization of singlet and triplet trions in WS${}_2$ monolayer in magnetic fields
• Trions in MoS${}_2$ are quantum superpositions of intra- and intervalley spin states
• Composite excitonic states in doped semiconductors
• Microscopic model of the doping dependence of line widths in monolayer transition metal dichalcogenides
• Valley-Filling Instability and Critical Magnetic Field for Interaction-Enhanced Zeeman Response in Doped WSe${}_2$ Monolayers
• Crossover from exciton polarons to trions in doped two-dimensional semiconductors at finite temperature
• Confined Trions and Mott-Wigner States in a Purely Electrostatic Moiré Potential
• Interaction induced AC-Stark shift of exciton-polaron resonances
• Emergence of 6-particle "hexciton'' states in WS${}_2$ and MoSe${}_2$ monolayers
• Excitons and trions in monolayer semiconductors with correlated electrons
• Spin-valley relaxation dynamics of Landau-quantized electrons in MoSe${}_2$ monolayer
• Quantum oscillations in 2D electron gases with spin-orbit and Zeeman interactions
• Raman scattering excitation in monolayers of semiconducting transition metal dichalcogenides
• Anomalous magneto-optical response and chiral interface of dipolar excitons at twisted valleys
• Excitons in periodic potentials
• Magneto-optical conductivity of monolayer transition metal dichalcogenides in the presence of proximity-induced exchange interaction and external electrical field
• Doping-induced non-Markovian interference causes excitonic linewidth broadening in monolayer WSe${}_2$
• Landau-level composition of bound exciton states in magnetic field
• AC-Stark Spectroscopy of Interactions between Moiré Excitons and Polarons
• Energy shifts and broadening of excitonic resonances in electrostatically-doped semiconductors
• Repulsive Fermi and Bose Polarons in Quantum Gases
• Canalized hyperbolic magnetoexciton polaritons enabled by the Shubnikov-de Haas effect in van der Waals semiconductors
• Optical properties of Fermi polarons in a GaInP/MoSe2 monolayer heterostructure
• Spin-orbital magnetism in moiré Wigner molecules
• Probing spatially resolved spin density correlations with trapped excitons
• Room-temperature tuning and probing of Fermi polarons in atomically thin semiconductors on a plasmonic metasurface
• Crystallizing electrons with artificially patterned lattices