Transport Theory of Monolayer Transition-Metal Dichalcogenides through Symmetry

Abstract

We present a theory that elucidates the major momentum and spin relaxation processes for electrons, holes and hot excitons in monolayer transition-metal dichalcogenides. We expand on spin flips induced by flexural phonons and show that the spin relaxation is ultrafast for electrons in free-standing membranes while being mitigated in supported membranes. This behavior due to interaction with flexural phonons is universal in two-dimensional membranes that respect mirror symmetry and it leads to a counterintuitive inverse relation between mobility and spin relaxation.

The published version. 5 pages main text is followed by 5 pages supplemental materials

References in corpus (5)

• Valley polarization in MoS2 monolayers by optical pumping
• Spin-orbit coupling in curved graphene, fullerenes, nanotubes, and nanotube caps
• Robust optical emission polarization in MoS2 monolayers through selective valley excitation
• Intervalley Scattering and Localization Behaviors of Spin-Valley Coupled Dirac Fermions
• Frictional figures of merit for single layered nanostructures

Cited by in corpus (141)

• Graphene Spintronics
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• k.p theory for two-dimensional transition metal dichalcogenide semiconductors
• Three-band tight-binding model for monolayers of group-VIB transition metal dichalcogenides
• Excitonic linewidth and coherence lifetime in monolayer transition metal dichalcogenides
• Strain tuning of optical emission energy and polarization in monolayer and bilayer MoS2
• Large spin splitting in the conduction band of transition metal dichalcogenide monolayers
• Magnetoelectric effects and valley controlled spin quantum gates in transition metal dichalcogenide bilayers
• Spin-Layer Locking Effects in Optical Orientation of Exciton Spin in Bilayer WSe2
• Two-dimensional semiconductors in the regime of strong light-matter coupling
• Measurement of high exciton binding energy in the monolayer transition-metal dichalcogenides WS2 and WSe2
• Long-lived nanosecond spin relaxation and spin coherence of electrons in monolayer MoS_2 and WS_2
• Charged excitons in monolayer WSe${}_2$: experiment and theory
• Exciton fine structure and spin decoherence in monolayers of transition metal dichalcogenides
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• Anomalously Robust Valley Polarization and Valley Coherence in Bilayer WS2
• Room temperature spin Hall effect in graphene/MoS${}_2$ van der Waals heterostructures
• A two-dimensional spin field-effect transistor
• Intervalley biexcitons and many-body effects in monolayer MoS2
• Valley Phonons and Exciton Complexes in a Monolayer Semiconductor
• Electrons and holes in phosphorene
• Theory of strain in single-layer transition metal dichalcogenides
• Phonon-assisted Photoluminescence from Dark Excitons in Monolayers of Transition Metal Dichalcogenides
• Polarization analysis of excitons in monolayer and bilayer transition-metal dichalcogenides
• The Coulomb interaction in monolayer transition-metal dichalcogenides
• Gate controlled spin-valley locking of resident carriers in WSe2 monolayers
• Spin and valley dynamics of excitons in transition metal dichalcogenides monolayers
• Probing the spin-polarized electronic band structure in monolayer transition metal dichalcogenides by optical spectroscopy
• Phonon-derived ultrafast relaxation of spin-valley polarized states in MoS_{2}
• Exciton diffusion in monolayer semiconductors with suppressed disorder
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• Pseudospin-driven spin relaxation mechanism in graphene
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• Valley-selective chiral phonon replicas of dark excitons and trions in monolayer WSe2
• 24 \textmu m length spin relaxation length in boron nitride encapsulated bilayer graphene
• Spin-flip processes and radiative decay of dark intravalley excitons in transition metal dichalcogenide monolayers
• Guide to optical spectroscopy of layered semiconductors
• Hot-electron cooling by acoustic and optical phonons in monolayers of MoS${}_2$ and other transition-metal dichalcogenides
• Multipath optical recombination of intervalley dark excitons and trions in monolayer WSe${}_2$
• Exciton states in monolayer MoSe2: impact on interband transitions
• Manipulating Spin-polarized Photocurrent in 2D Transition Metal Dichalcogenides
• Dark excitons and the elusive valley polarization in transition metal dichalcogenides
• Double resonant Raman scattering and valley coherence generation in monolayer WSe2
• Electronic and Optical Properties of Vacancy Defects in Transition Metal Dichalcogenides
• Probing Many-Body Interactions in Monolayer Transition-Metal Dichalcogenides
• Electron spin relaxation due to D'yakonov-Perel' and Elliot-Yafet mechanisms in monolayer MoS${}_2$: Role of intravalley and intervalley processes
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• Dynamics and Spin-Valley Locking Effects in Monolayer Transition Metal Dichalcogenides
• Effect of modulations of doping and strain on the electron transport in monolayer MoS_2
• Quantum transport and observation of Dyakonov-Perel spin-orbit scattering in monolayer MoS${}_2$
• Imaging Spin Dynamics in Monolayer WS2 by Time-Resolved Kerr Rotation Microscopy
• Dynamical screening in monolayer transition-metal dichalcogenides and its manifestations in the exciton spectrum
• Marrying excitons and plasmons in monolayer transition-metal dichalcogenides
• Anomalous temperature-dependent spin-valley polarization in monolayer WS${}_2$
• Symmetry, distorted bandstructure, and spin-orbit coupling of (group-III) metal-monochalcogenide monolayers
• Strain effects on the spin-orbit induced band structure splittings in monolayer MoS2 and graphene
• Negative excitonic diffusion in transition metal dichalcogenides
• Odd-parity superconductivity in bilayer transition metal dichalcogenides
• Spin coherence and dephasing of localized electrons in monolayer MoS${}_2$
• Measurement of Conduction and Valence Bands g-factors in a Transition Metal Dichalcogenide Monolayer
• Phonon wind and drag of excitons in monolayer semiconductors
• Efficient phonon cascades in hot photoluminescence of WSe${}_2$ monolayers
• Hexcitons and oxcitons in monolayer WSe${}_2$
• A Tight Binding Approach to Strain and Curvature in Monolayer Transition-Metal Dichalcogenides
• Intrinsic Donor-Bound Excitons in Ultraclean Monolayer Semiconductors
• Relaxation and darkening of excitonic complexes in electrostatically-doped monolayer semiconductors: Roles of exciton-electron and trion-electron interactions
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• Theory of intervalley Coulomb interactions in monolayer transition-metal dichalcogenides
• Optical generation and detection of pure valley current in monolayer transition metal dichalcogenides
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• Indirect doping effects from impurities in MoS${}_2$/BN heterostructures
• Strain-dependent exciton diffusion in transition metal dichalcogenides
• Quantum interference effect on exciton transport in monolayer semiconductors
• Direct view of phonon dynamics in atomically thin MoS${}_2$
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• Nonequilibrium Carrier Dynamics in Transition Metal Dichalcogenide Semiconductors
• Prominent room temperature valley polarization in WS2/graphene heterostructures grown by chemical vapor deposition
• Flipping exciton angular momentum with chiral phonons in MoSe${}_2$/WSe${}_2$ heterobilayers
• Intrinsic electron spin relaxation due to the D'yakonov-Perel' mechanism in monolayer MoS${}_2$
• Elliott-Yafet Spin-Phonon Relaxation Times from First Principles
• Interaction-driven transport of dark excitons in 2D semiconductors with phonon-mediated optical readout
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• Infrared to terahertz optical conductivity of $n$-type and $p$-type monolayer MoS${}_2$ in the presence of Rashba spin-orbit coupling
• Exciton fine structure splitting and linearly polarized emission in strained transition-metal dichalcogenide monolayers
• Symmetry and Control of Spin-Scattering Processes in Two-Dimensional Transition Metal Dichalcogenides
• Spin susceptibility of two-dimensional transition metal dichalcogenides
• Detection of thermodynamic "valley noise" in monolayer semiconductors: access to intrinsic valley relaxation timescales
• Spin-Degenerate Regimes for Single Quantum Dots in Transition Metal Dichalcogenide Monolayers
• Ultrafast phonon-driven charge transfer in van der Waals heterostructures
• Spin accumulation and dynamics in inversion-symmetric van der Waals crystals
• Spin-dependent Refraction at the Atomic Step of Transition-metal Dichalcogenides
• Valley Dynamics of Excitons in Monolayer Dichalcogenides
• Electrons, holes, and spin in the IV-VI monolayer 'four-six-enes'
• Signatures of electric field and layer separation effects on the spin-valley physics of MoSe${}_2$/WSe${}_2$ heterobilayers: from energy bands to dipolar excitons
• Enhanced Spin-Flip Scattering by Surface Roughness in WS${}_2$ and MoS${}_2$ Armchair Nanoribbons
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• Theory of superconductivity in hole-doped monolayer MoS${}_2$
• Strain-induced activation of chiral-phonon emission in monolayer WS${}_2$
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• Phonon-assisted Exciton Dissociation in Transition Metal Dichalcogenides
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• Excitation-Dependent High-Lying Excitonic Exchange via Interlayer Energy Transfer from Lower-to-Higher Bandgap 2D Material
• Valley Depolarization in Monolayer Transition-Metal Dichalcogenides with Zone-Corner Acoustic Phonons
• Emergence of 6-particle "hexciton'' states in WS${}_2$ and MoSe${}_2$ monolayers
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• Hole spin relaxation in bilayer WSe${}_2$
• Valley relaxation in graphene due to charged impurities
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• Triangular lattice exciton model
• Flexural deformations and collapse of bilayer two-dimensional crystals by interlayer exciton
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• Kramers' revenge
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• Ab-initio calculations for electronic and optical properties of Er${}_{\mathrm{W}}$ defects in tungsten disulfide
• Spin diffusion in p-type bilayer WSe${}_2$
• Spin relaxation and transport behaviors in altermagnetic systems
• Ultrafast Phonon-Diffuse Scattering as a Tool for Observing Chiral Phonons in Monolayer Hexagonal Lattices
• Multi-component plasmons in monolayer MoS${}_2$ with circularly polarized optical pumping
• Quantum corrections to transport in graphene: a trajectory-based semiclassical analysis
• Photoluminescence kinetics of dark and bright excitons in atomically thin MoS${}_2$
• Hydrogenic Spin-Valley states of the Bromine donor in 2H-MoTe${}_2$
• Spin/Valley pumping of resident electrons in WSe2 and WS2 monolayers
• Energy shifts and broadening of excitonic resonances in electrostatically-doped semiconductors
• Signature of Hanle Precession in Trilayer MoS2: Theory and Experiment
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• Three-orbital continuous model for $1H$-type metallic transition-metal dichalcogenide monolayers
• Intersubband electric dipole spin resonance in transition metal dichalcogenide heterobilayers
• Inherited Berry curvature of phonons in Dirac materials with time-reversal symmetry
• Soft-x-ray spectroscopy of monolayer transition metal dichalcogenides: valley selectivity?
• Optical spectrum of $n$-type and $p$-type monolayer MoS${}_2$ in the presence of proximity-induced interactions