Microscopic linear response theory of spin relaxation and relativistic transport phenomena in graphene
arXiv:1804.08634 · doi:10.3390/condmat3020018
Abstract
We present a unified theoretical framework for the study of spin dynamics and relativistic transport phenomena in disordered two-dimensional Dirac systems with pseudospin-spin coupling. The formalism is applied to the paradigmatic case of graphene with uniform Bychkov-Rashba interaction and shown to capture spin relaxation processes and associated charge-to-spin interconversion phenomena in response to generic external perturbations, including spin density fluctuations and electric fields. A controlled diagrammatic evaluation of the generalized spin susceptibility in the diffusive regime of weak spin-orbit interaction allows us to show that the spin and momentum lifetimes satisfy the standard Dyakonov-Perel relation for both weak (Gaussian) and resonant (unitary) nonmagnetic disorder. Finally, we demonstrate that the spin relaxation rate can be derived in the zero-frequency limit by exploiting the SU(2) covariant conservation laws for the spin observables. Our results set the stage for a fully quantum-mechanical description of spin relaxation in both pristine graphene samples with weak spin-orbit fields and in graphene heterostructures with enhanced spin-orbital effects currently attracting much attention.
arXiv comment18 pages, 4 figures, 1 table
References in corpus (64)
- Electronic spin transport and spin precession in single graphene layers at room temperature
- First observation of Spin-Momentum Helical Locking in Bi2Se3 and Bi2Te3, demonstration of Topological-Order at 300K and a realization of topological-transport-regime
- Graphene Spintronics
- Spintronics and Pseudospintronics in Graphene and Topological Insulators
- Spin-orbit coupling in curved graphene, fullerenes, nanotubes, and nanotube caps
- Weak localisation magnetoresistance and valley symmetry in graphene
- Defect scattering in graphene
- Spin dynamics in semiconductors
- Impurity induced spin-orbit coupling in graphene
- Tunneling Spin Injection into Single Layer Graphene (Supplementary Information)
- Tunneling Spin Injection into Single Layer Graphene
- Electron transport in disordered graphene
- Spin Relaxation in Single Layer and Bilayer Graphene
- Inverse Edelstein Effect
- Spin-Orbit-Mediated Spin Relaxation in Graphene
- Spin lifetimes exceeding 12 nanoseconds in graphene non-local spin valve devices
- On resonant scatterers as a factor limiting carrier mobility in graphene
- Observation of Long Spin Relaxation Times in Bilayer Graphene at Room Temperature
- Theory of Spin-Charge Coupled Transport in a Two-Dimensional Electron Gas with Rashba Spin-Orbit Interactions
- Strongly anisotropic spin relaxation in graphene/transition metal dichalcogenide heterostructures at room temperature
- Electron spin relaxation in graphene: the role of the substrate
- Linear scaling between momentum and spin scattering in graphene
- Long Distance Spin Transport in High Mobility Graphene on Hexagonal Boron Nitride
- Giant Spin Lifetime Anisotropy in Graphene Induced by Proximity Effects
- Electronic spin transport in graphene field effect transistors
- Large Proximity-Induced Spin Lifetime Anisotropy in Transition Metal Dichalcogenide/Graphene Heterostructures
- Spin relaxation mechanism in graphene: resonant scattering by magnetic impurities
- Manipulation of Spin Transport in Graphene by Surface Chemical Doping
- Unified description of the dc conductivity of monolayer and bilayer graphene at finite densities based on resonant scatterers
- Nanosecond spin lifetimes in single- and few-layer graphene-hBN heterostructures at room temperature
- Spin transport in high quality suspended graphene devices
- Nonlocal Charge Transport Mediated by Spin Diffusion in the Spin-Hall Effect Regime
- Transport and elastic scattering times as probes of the nature of impurity scattering in single and bilayer graphene
- Optimal charge-to-spin conversion in graphene on transition metal dichalcogenides
- Elliot-Yafet mechanism in graphene
- Strong Spin-Orbit Interaction Induced in Graphene by Monolayer WS
- Extrinsic spin Hall effect induced by resonant skew scattering in graphene
- Pseudospin-driven spin relaxation mechanism in graphene
- z/-z Symmetry of spin-orbit coupling and weak localization in graphene
- Determination of the spin-lifetime anisotropy in graphene using oblique spin precession
- 24 \textmu m length spin relaxation length in boron nitride encapsulated bilayer graphene
- Quasiclassical approach to the spin-Hall effect in the two-dimensional electron gas
- Defect-mediated spin relaxation and dephasing in graphene
- Spin Transport in Hydrogenated Graphene
- Spin Dynamics and Relaxation in Graphene Dictated by Electron-hole Puddles
- Spin-orbit interaction in a two-dimensional electron gas: a SU(2) formulation
- Comparison between charge and spin transport in few layer graphene
- Anomalous Hall effect with massive Dirac fermions
- Role of MgO barriers for spin and charge transport in Co/MgO/graphene non-local spin-valve devices
- Electron spin relaxation in graphene with random Rashba field: Comparison of D'yakonov-Perel' and Elliott-Yafet--like mechanisms
- Enhancement of spin relaxation time in hydrogenated graphene spin valve devices
- Effects of Dephasing on Spin Lifetime in Ballistic Spin-Orbit Materials
- Covariant conservation laws and the spin Hall effect in Dirac-Rashba systems
- Spin Relaxation in a Two-Dimensional Electron Gas in a Perpendicular Magnetic Field
- Uncovering the Dominant Scatterer in Graphene Sheets on SiO2
- Quantum Diagrammatic Theory of the Extrinsic Spin Hall Effect in Graphene
- Theory of current-induced spin polarizations in an electron gas
- Spin-Charge Locking and Tunneling into a Helical Metal
- Unconventional dc transport in Rashba electron gases
- Direct coupling between charge current and spin polarization by extrinsic mechanisms in graphene
- Crossover to the Anomalous Quantum Regime in the Extrinsic Spin Hall Effect of Graphene
- Influence of impurity spin dynamics on quantum transport in epitaxial graphene
- Anomalous Nonlocal Resistance and Spin-charge Conversion Mechanisms in Two-Dimensional Metals
- Spin relaxation 1/f noise in graphene
Cited by in corpus (9)
- Microscopic Theory of Spin Relaxation Anisotropy in Graphene with Proximity-Induced Spin-Orbit Coupling
- Twist Angle Controlled Collinear Edelstein Effect in van der Waals Heterostructures
- Skew-scattering-induced giant antidamping spin-orbit torques: Collinear and out-of-plane Edelstein effects at two-dimensional material/ferromagnet interfaces
- Spin Hall and inverse spin galvanic effects in graphene with strong interfacial spin-orbit coupling: a quasi-classical Green's function approach
- Nonperturbative approach to interfacial spin-orbit torques induced by Rashba effect
- Many-body theory of phonon-induced spin relaxation and decoherence
- Theory of spin-charge-coupled transport in proximitized graphene: An SO(5) algebraic approach
- Theory of Spin Injection in Two-dimensional Metals with Proximity-Induced Spin-Orbit Coupling
- Terahertz Spin-Light Coupling in Proximitized Dirac Materials