Spin memory and spin-lattice relaxation in two-dimensional hexagonal crystals

Abstract

We propose a theory of spin relaxation of electrons and holes in two-dimensional hexagonal crystals such as atomic layers of transition metal dichalcogenides (MoS2, WSe2, etc). We show that even in intrinsically defectless crystals, their flexural deformations are able to generate spin relaxation of carriers. Based on symmetry analysis, we formulate a generic model for spin-lattice coupling between electrons and flexural deformations, and use it to determine temperature and material-dependent spin lifetimes in atomic crystals in ambient conditions.

4+1 pages

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Cited by in corpus (27)

• k.p theory for two-dimensional transition metal dichalcogenide semiconductors
• Novel effects of strains in graphene and other two dimensional materials
• Valley depolarization due to inter- and intra-valley electron-hole exchange interactions in monolayer MoS${}_2$
• Spin-orbit coupling, quantum dots, and qubits in monolayer transition metal dichalcogenides
• Electronic properties of single-layer and multilayer transition metal dichalcogenides $M{X}_2$ ($M=$ Mo, W and $X=$ S, Se)
• Theory of strain in single-layer transition metal dichalcogenides
• Electronic Structure Theory of Strained Two-Dimensional Materials with Hexagonal Symmetry
• Electron spin relaxation due to D'yakonov-Perel' and Elliot-Yafet mechanisms in monolayer MoS${}_2$: Role of intravalley and intervalley processes
• Imaging Spin Dynamics in Monolayer WS2 by Time-Resolved Kerr Rotation Microscopy
• Quantum transport and observation of Dyakonov-Perel spin-orbit scattering in monolayer MoS${}_2$
• A Tight Binding Approach to Strain and Curvature in Monolayer Transition-Metal Dichalcogenides
• Valley relaxation of resident electrons and holes in a monolayer semiconductor: Dependence on carrier density and the role of substrate-induced disorder
• Spin-valley relaxation and quantum transport regimes in two-dimensional transition metal dichalcogenides
• Emergent gauge fields from curvature in single layers of transition-metal dichalcogenides
• Spin susceptibility of two-dimensional transition metal dichalcogenides
• Enhanced Spin-Flip Scattering by Surface Roughness in WS${}_2$ and MoS${}_2$ Armchair Nanoribbons
• Hole spin relaxation in bilayer WSe${}_2$
• Spin to charge conversion in MoS${}_2$ monolayer with spin pumping
• Spin relaxation in hole-doped transition metal dichalcogenide monolayer and bilayer with the crystal defects
• A steady state approach for studying valley relaxation using optical vortex beam
• Spin diffusion in p-type bilayer WSe${}_2$
• Electronic transmission in the lateral heterostructure of semiconducting and metallic transition-metal dichalcogenide monolayers
• Impact of novel electron-phonon coupling mechanisms on valley physics in two-dimensional materials
• Weakly damped acoustic plasmon mode in transition metal dichalcogenides with Zeeman splitting
• Exchange-enhanced spin-orbit splitting and its density dependence for electrons in monolayer transition metal dichalcogenides
• Strain-Fluctuation-Induced Near-Quantization of Valley Hall Conductivity in Graphene Systems
• Three-orbital continuous model for $1H$-type metallic transition-metal dichalcogenide monolayers