Intervalley Scattering and Localization Behaviors of Spin-Valley Coupled Dirac Fermions

Abstract

We study the quantum diffusive transport of multivalley massive Dirac cones, where time-reversal symmetry requires opposite spin orientations in inequivalent valleys. We show that the intervalley scattering and intravalley scattering can be distinguished from the quantum conductivity that corrects the semiclassical Drude conductivity, due to their distinct symmetries and localization trends. In immediate practice, it allows transport measurements to estimate the intervalley scattering rate in hole-doped monolayers of group-VI transition metal dichalcogenides (e.g., molybdenum dichalcogenides and tungsten dichalcogenides), an ideal class of materials for valleytronics applications. The results can be generalized to a large class of multivalley massive Dirac systems with spin-valley coupling and time-reversal symmetry.

arXiv comment5 pages+4 pages of supplemental materials, 4 figures

References in corpus (23)

• Atomically thin MoS2: A new direct-gap semiconductor
• Two Dimensional Atomic Crystals
• Berry Phase Effects on Electronic Properties
• Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides
• Control of valley polarization in monolayer MoS2 by optical helicity
• Valley polarization in MoS2 monolayers by optical pumping
• Electronic transport in two dimensional graphene
• MoS_2 as an ideal material for valleytronics: valley-selective circular dichroism and valley Hall effect
• Quantum Spin Hall Effect in Silicene
• Valley contrasting physics in graphene: magnetic moment and topological transport
• High Performance Single Layered WSe2 p-FETs with Chemically Doped Contacts
• Valley filter and valley valve in graphene
• Epitaxial Growth of a Silicene Sheet
• Valley Dependent Optoelectronics from Inversion Symmetry Breaking
• Intrinsic and Rashba Spin-orbit Interactions in Graphene Sheets
• Spin-orbit gap of graphene: First-principles calculations
• Weak localisation magnetoresistance and valley symmetry in graphene
• Evidence for Dirac Fermions in a honeycomb lattice based on silicon
• Edge states in Graphene: from gapped flat band to gapless chiral modes
• Valley susceptibility of an interacting two-dimensional electron system
• Competition between weak localization and antilocalization in topological surface states
• Weak (anti-)localization in doped Z_2-topological insulator
• Weak Localization of Dirac Fermions in Graphene

Cited by in corpus (60)

• Three-band tight-binding model for monolayers of group-VIB transition metal dichalcogenides
• Electronic structures and theoretical modelling of two-dimensional group-VIB transition metal dichalcogenides
• Monolayer MoS2: trigonal warping, "Γ-valley", and spin-orbit coupling effects
• Valley-Polarized Quantum Anomalous-Hall Effects in Silicene
• Transport Theory of Monolayer Transition-Metal Dichalcogenides through Symmetry
• Electronic properties of single-layer and multilayer transition metal dichalcogenides $M{X}_2$ ($M=$ Mo, W and $X=$ S, Se)
• Dark excitons in transition metal dichalcogenides
• Analytical approach to excitonic properties of MoS2
• Topological Phase Transition in Mechanical Honeycomb Lattice
• Spin-Orbit mediated spin relaxation in monolayer MoS2
• Polarization analysis of excitons in monolayer and bilayer transition-metal dichalcogenides
• Valley Polarization by Spin Injection in a Light-Emitting van der Waals Heterojunction
• Effect of Point Defects on the Optical and Transport Properties of MoS2 and WS2
• Weak antilocalization and localization in disordered and interacting Weyl semimetals
• Temperature Dependent Valley Relaxation Dynamics in Single Layer WS2 Measured Using Ultrafast Spectroscopy
• Finite-temperature conductivity and magnetoconductivity of topological insulators
• Magneto-Transport in MoS2: Phase Coherence, Spin Orbit Scattering and the Hall Factor
• Valley Contrasting Magnetoluminescence in Monolayer MoS${}_2$ Quantum Hall Systems
• Excitons and trions in monolayer transition metal dichalcogenides: A comparative study between the multiband model and the quadratic single-band model
• Spin Hall effect in spin-valley coupled monolayer transition-metal dichalcogenides
• Quantum transport and observation of Dyakonov-Perel spin-orbit scattering in monolayer MoS${}_2$
• Local Spectroscopic Characterization of Spin and Layer Polarization in WSe${}_2$
• Intrinsic circular polarization in centrosymmetric stacks of transition-metal dichalcogenides
• Probing the Topological Phase Transition via Density Oscillations in Silicene and Germanene
• Excitons, trions, and biexcitons in transition metal dichalcogenides: magnetic field dependence
• Indirect exchange interaction between magnetic adatoms in a monolayer MoS2
• Robust weak antilocalization due to spin-orbital entanglement in Dirac material Sr${}_3$SnO
• Optical generation and detection of pure valley current in monolayer transition metal dichalcogenides
• Valley- and spin-switch effects in molybdenum disulfide superconducting spin valve
• Spin-valley relaxation and quantum transport regimes in two-dimensional transition metal dichalcogenides
• Magneto-optical transport properties of monolayer WSe2
• Modification of electronic structure and thermoelectric properties of hole-doped tungsten dichalcogenides
• Intrinsic electron spin relaxation due to the D'yakonov-Perel' mechanism in monolayer MoS${}_2$
• Symmetry-forbidden intervalley scattering by atomic defects in monolayer transition-metal dichalcogenides
• Electric control of spin in monolayer WSe2 field effect transistors
• Broadband pump-probe study of biexcitons in chemically exfoliated layered WS${}_2$
• Landau levels and Shubnikov-de Haas oscillations in monolayer transition metal dichalcogenide semiconductors
• Infrared to terahertz optical conductivity of $n$-type and $p$-type monolayer MoS${}_2$ in the presence of Rashba spin-orbit coupling
• Spin susceptibility of two-dimensional transition metal dichalcogenides
• Spin-Degenerate Regimes for Single Quantum Dots in Transition Metal Dichalcogenide Monolayers
• Influence of Defects on the Valley Polarization Properties of Monolayer MoS${}_2$ Grown by Chemical Vapor Deposition
• Weak Localization, Spin Relaxation, and Spin-Diffusion: The Crossover Between Weak and Strong Rashba Coupling Limits
• Atomistic $T$-matrix theory of disordered 2D materials: Bound states, spectral properties, quasiparticle scattering, and transport
• Valley- and spin-filter in monolayer MoS${}_2$
• Tight-binding Piezoelectric Theory and Electromechanical Coupling Correlations for Transition Metal Dichalcogenide Monolayers
• Berry curvature in monolayer MoS${}_2$ with broken mirror symmetry
• Topological Ising pairing states in monolayer and trilayer TaS${}_2$
• $\Gamma$-valley assisted intervalley scattering on monolayer and bilayer WS2 revealed by time-resolved Kerr rotation spectroscopy
• Forbidden Backscattering and Resistance Dip in the Quantum Limit as a Signature for Topological Insulators
• Optical fingerprint of non-covalently functionalized transition metal dichalcogenides
• Self-Induced Valley Bosonic Stimulation of Exciton-Polaritons in a Monolayer Semiconductor
• Emergence of Rashba spin valley state in two-dimensional strained bismuth oxychalcogenides Bi${}_2$O${}_2$Se
• Multi-component plasmons in monolayer MoS${}_2$ with circularly polarized optical pumping
• Electron diffusion induced valley Hall effect and nonlinear galvanodiffusive transport in hexagonal 2D Dirac monolayer materials
• Intrinsic Valley Polarization and Anomalous Valley Hall Effect in Single-Layer 2H-FeCl2
• Longitudinal and transverse mobilities of $n$-type monolayer transition metal dichalcogenides in the presence of proximity-induced interactions at low temperature
• Linear magnetoresistance of two-dimensional massless Dirac fermions in the quantum limit
• Plasmonic detection of Rashba spin-orbit coupling in monolayer transition-metal dichalcogenides
• Weak Localization and Antilocalization in Twisted Bilayer Graphene
• Optical spectrum of $n$-type and $p$-type monolayer MoS${}_2$ in the presence of proximity-induced interactions