Electron spin dynamics and electron spin resonance in graphene
arXiv:1004.0210 · doi:10.1209/0295-5075/92/17002
Abstract
A theory of spin relaxation in graphene including intrinsic, Bychkov-Rashba, and ripple spin-orbit coupling is presented. We find from spin relaxation data by Tombros et al. [Nature 448, 571 (2007).] that intrinsic spin-orbit coupling dominates over other contributions with a coupling constant of 3.7 meV. Although it is 1-3 orders of magnitude larger than those obtained from first principles, we show that comparable values are found for other honeycomb systems, MgB2 and LiC6; the latter is studied herein by electron spin resonance (ESR). We predict that spin coherence is longer preserved for spins perpendicular to the graphene plane, which is beneficial for spintronics. We identify experimental conditions when bulk ESR is realizable on graphene.
References in corpus (11)
- Electric Field Effect in Atomically Thin Carbon Films
- The electronic properties of graphene
- Ultrahigh electron mobility in suspended graphene
- Intrinsic and Rashba Spin-orbit Interactions in Graphene Sheets
- Spin-orbit coupling in curved graphene, fullerenes, nanotubes, and nanotube caps
- Spin-orbit gap of graphene: First-principles calculations
- Broken symmetry states and divergent resistance in suspended bilayer graphene
- Linear scaling between momentum and spin scattering in graphene
- Electronic Structure of gated graphene and graphene ribbons
- Generalized Elliott-Yafet theory of electron spin relaxation in metals: the origin of the anomalous electron spin life-time in MgB2
- Electron spin dynamics in strongly correlated metals
Cited by in corpus (13)
- Graphene Spintronics
- Spin relaxation mechanism in graphene: resonant scattering by magnetic impurities
- Model spin-orbit coupling Hamiltonians for graphene systems
- Spin Dynamics and Relaxation in Graphene Dictated by Electron-hole Puddles
- A unified theory of spin-relaxation due to spin-orbit coupling in metals and semiconductors
- Spin dephasing and pumping in graphene due to random spin-orbit interaction
- Resonant scattering by magnetic impurities as a model for spin relaxation in bilayer graphene
- Measuring anisotropic spin relaxation in graphene
- Testing the Elliott-Yafet spin-relaxation mechanism in KC8; a model system of biased graphene
- Polarization amplification by spin-doping in nanomagnetic/graphene hybrid systems
- The empirical Monod-Beuneu relation of spin-relaxation revisited for elemental metals
- Spin Dynamics in Graphene and Graphene like Nanocarbon Doped with Nitrogen the ESR Analysis
- Unprecedented Spin-Lifetime of Itinerant Electrons in Natural Graphite Crystals