Longitudinal and spin/valley Hall optical conductivity in single layer $Mo{S}_2$

Abstract

A monolayer of $Mo{S}_2$ has a non-centrosymmetric crystal structure, with spin polarized bands. It is a two valley semiconductor with direct gap falling in the visible range of the electromagnetic spectrum. Its optical properties are of particular interest in relation to valleytronics and possible device applications. We study the longitudinal and the transverse Hall dynamical conductivity which is decomposed into charge, spin and valley contributions. Circular polarized light associated with each of the two valleys separately is considered and results are filtered according to spin polarization. Temperature can greatly change the spin admixture seen in the frequency window where they are not closely in balance.

8 pages, 5 figures, accepted by Phys. Rev. B

References in corpus (11)

• Electric Field Effect in Atomically Thin Carbon Films
• The electronic properties of graphene
• Two Dimensional Atomic Crystals
• Valley polarization in MoS2 monolayers by optical pumping
• Valley filter and valley valve in graphene
• Valley Dependent Optoelectronics from Inversion Symmetry Breaking
• Unusual Microwave Response of Dirac Quasiparticles in Graphene
• Intrinsic spin Hall effect in monolayers of group-VI dichalcogenides: A first-principles study
• Optical conductivity of bilayer graphene with and without an asymmetry gap
• Optical Signatures of the Tunable Band Gap and Valley-Spin Coupling in Silicene
• Effect of Holstein phonons on the electronic properties of graphene

Cited by in corpus (46)

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• Magneto-Optical Conductivity of Silicene and Other Buckled Honeycomb Lattices
• Effect of Point Defects on the Optical and Transport Properties of MoS2 and WS2
• Effect of electron-hole asymmetry on optical conductivity in 8-Pmmn borophene
• AC/DC Spin and Valley Hall Effects in Silicene and Germanene
• Chiral plasmon in gapped Dirac systems
• Valley Contrasting Magnetoluminescence in Monolayer MoS${}_2$ Quantum Hall Systems
• Photoinduced quantum spin and valley Hall effects and orbital magnetization in monolayer MoS2
• Interplay between spin-orbit interactions and a time-dependent electromagnetic field in monolayer graphene
• Anisotropic longitudinal optical conductivities of tilted Dirac bands in 1T${}^{\prime }$-MoS${}_2$
• Intrinsic optical conductivity of modified-Dirac fermion systems
• Magneto-optical transport properties of monolayer WSe2
• Spin-resolved optical conductivity of two-dimensional group-VIB transition-metal dichalcogenides
• Direction dependent giant optical conductivity in 2D \textit{semi}-Dirac materials
• Optical conductivity of semi-Dirac and pseudospin-1 models: Zitterbewegung approach
• All-optical injection of charge, spin and valley currents in monolayer transition metal dichalcogenides
• Infrared to terahertz optical conductivity of $n$-type and $p$-type monolayer MoS${}_2$ in the presence of Rashba spin-orbit coupling
• Strong anisotropic optical conductivity in two dimensional puckered structures: The role of Rashba effect
• Dynamical optical conductivity for gapped $\alpha -{\mathcal{T}}_3$ materials with a curved "flat" band
• Phonon structure in dispersion curves and density of states of massive Dirac Fermions
• Signatures of Lifshitz transition in the optical conductivity of two-dimensional tilted Dirac materials
• Impact of chemical potential on the reflectance of graphene in the infrared and microwave domains
• Conductivity of Dirac fermions with phonon induced topological crossover
• Valley Hall Transport of Photon-Dressed Quasiparticles in 2D Dirac Semiconductors
• Optical Conductivity of Topological Insulator Thin Films in a Quantizing Magnetic Field
• Origin of the repulsive Casimir force in giant polarization-interconversion materials
• Optical induced Spin Current in Monolayer NbSe${}_2$
• Photogalvanic currents in dynamically gapped Dirac materials
• Nonlocal optical conductivity of Fermi surface nesting materials
• Influence of interface-induced valley-Zeeman and spin-orbit couplings\\ on transport in graphene-on-WSe${}_2$ heterostructures
• Electron-phonon correlations on spin texture of gapped helical Dirac Fermions
• Controllable intrinsic DC spin/valley Hall conductivity in ferromagnetic silicene: Exploring a fully spin/valley polarized transport
• Drude weight and optical conductivity of a two-dimensional heavy-hole gas with $k$-cubic spin-orbit interactions
• Multi-component plasmons in monolayer MoS${}_2$ with circularly polarized optical pumping
• Magneto-optical conductivity of monolayer transition metal dichalcogenides in the presence of proximity-induced exchange interaction and external electrical field
• Decoding the DC and optical conductivities of disordered MoS${}_2$ films: an inverse problem
• Control of valley optical conductivity and topological phases in buckled hexagonal lattice by orientation of in-plane magnetic field
• Optically induced spin Hall current in Janus transition-metal dichalcogenides
• Perfect valley polarization in MoS2
• Longitudinal and transverse mobilities of $n$-type monolayer transition metal dichalcogenides in the presence of proximity-induced interactions at low temperature
• Cyclotron Resonance in Topological Insulators: Non-Relativistic Effects
• Anomalous Behaviour in the Magneto-Optics of a Gapped Topological Insulator
• Topologically induced fractional Hall steps in the integer quantum Hall regime of $Mo{S}_2$
• Vanishing of interband light absorption in a persistent spin helix state
• Optical spectrum of $n$-type and $p$-type monolayer MoS${}_2$ in the presence of proximity-induced interactions