Magnetotransport signatures of the proximity exchange and spin-orbit couplings in graphene
arXiv:1608.03879 · doi:10.1103/PhysRevB.94.195401
Abstract
Graphene on an insulating ferromagnetic substrate---ferromagnetic insulator or ferromagnetic metal with a tunnel barrier---is expected to exhibit giant proximity exchange and spin-orbit couplings. We use a realistic transport model of charge-disorder scattering and solve the linearized Boltzmann equation numerically exactly for the anisotropic Fermi contours of modified Dirac electrons to find magnetotransport signatures of these proximity effects: proximity anisotropic magnetoresistance, inverse spin-galvanic effect, and the planar Hall resistivity. We establish the corresponding anisotropies due to the exchange and spin-orbit couplings, with respect to the magnetization orientation. We also present parameter maps guiding towards optimal regimes for observing transport magnetoanisotropies in proximity graphene.
5 pages, 5 figures
References in corpus (15)
- Dielectric function, screening, and plasmons in 2D graphene
- Graphene Spintronics
- Carrier transport in 2D graphene layers
- A self-consistent theory for graphene transport
- Colloquium: The transport properties of graphene: An introduction
- Proximity-induced ferromagnetism in graphene revealed by anomalous Hall effect
- Spin-Orbit Proximity Effect in Graphene
- Quantum Anomalous Hall Effect in Graphene Proximity Coupled to an Antiferromagnetic Insulator
- Magnetic Insulator-Induced Proximity Effects in Graphene: Spin Filtering and Exchange Splitting Gaps
- Single particle relaxation time versus transport scattering time in a 2D graphene layer
- Anisotropic tunneling magnetoresistance and tunneling anisotropic magnetoresistance: spin-orbit coupling in magnetic tunnel junctions
- Anisotropic current-induced spin accumulation in the two-dimensional electron gas with spin-orbit coupling
- Semiclassical framework for the calculation of transport anisotropies
- Ab initio spin-flip conductance of hydrogenated graphene nanoribbons: Spin-orbit interaction and scattering with local impurity spins
- Anisotropic conductivity of disordered 2DEGs due to spin-orbit interactions