Intrinsic spin Hall effect in graphene: Numerical calculations in a multi-orbital mode

Abstract

We study the spin Hall effect (SHE) in graphene using a realistic multi-orbital tight-binding model that includes the atomic spin-orbit interaction. The SHE is found to be induced by the spin-dependent Aharonov-Bohm phase. In the metallic case, the calculated values for the spin Hall conductivity (SHC) are much smaller than the quantized Hall conductivity for realistic parameter values of metallic graphene. In the insulating case, quantization of the SHC is violated due to the multi-orbital effect. The present study suggests that the SHE in a honeycomb lattice is enhanced by chemical doping, such as the substitution of carbon atoms with boron atoms.

5 pages, 4 figures

References in corpus (28)

• Electric Field Effect in Atomically Thin Carbon Films
• Two-Dimensional Gas of Massless Dirac Fermions in Graphene
• Experimental Observation of Quantum Hall Effect and Berry's Phase in Graphene
• Quantum Spin Hall Effect in Graphene
• $Z_2$ Topological Order and the Quantum Spin Hall Effect
• Universal Intrinsic Spin-Hall Effect
• Dissipationless Quantum Spin Current at Room Temperature
• Direct electronic measurement of the spin Hall effect
• Unconventional Integer Quantum Hall effect in graphene
• Intrinsic and Rashba Spin-orbit Interactions in Graphene Sheets
• Room Temperature Reversible Spin Hall Effect
• Spin-orbit coupling in curved graphene, fullerenes, nanotubes, and nanotube caps
• Strong suppression of weak (anti)localization in graphene
• Quantum Hall Ferromagnetism in Graphene
• Study of Intrinsic Spin Hall Effect and Orbital Hall Effect in 4d- and 5d- Transition Metals
• Quantum Spin Hall Effect and Enhanced Magnetic Response by Spin-Orbit Coupling
• Coupling of Spin and Orbital Motion of Electrons in Carbon Nanotubes
• Spin Filtered Edge States and Quantum Hall Effect in Graphene
• Suppression of the Persistent Spin Hall Current by Defect Scattering
• Nondissipative Spin Hall Effect via Quantized Edge Transport
• Charge and spin Hall conductivity in metallic graphene
• Quantum Hall Effect of Dirac Fermions in Graphene: Disorder Effect and Phase Diagram
• Spin-orbit interaction and anomalous spin relaxation in carbon nanotube quantum dots
• Giant Intrinsic Spin and Orbital Hall Effects in Sr2MO4 (M=Ru,Rh,Mo)
• Intrinsic Zeeman Effect in Graphene
• Study of intrinsic spin and orbital Hall effects in Pt based on a (6s, 6p, 5d) tight-binding model
• Supersymmetry and Unconventional Quantum Hall Effect in Graphene
• Supersymmetry and Correlated Electrons in Graphene Quantum Hall Effect

Cited by in corpus (6)

• Electronic properties of graphene and graphene nanoribbons with "pseudo-Rashba" spin-orbit coupling
• Spin Hall effect in a system of Dirac fermions in the honeycomb lattice with intrinsic and Rashba spin-orbit interaction
• Intrinsic spin-orbit interactions in flat and curved graphene nanoribbons
• Unscreened Coulomb interactions and quantum spin Hall phase in neutral zigzag graphene ribbons
• Intrinsic Spin Hall Effect in s-wave Superconducting State: Analysis of Rashba Model
• Quantum Spin Hall Effect in Graphene Nanoribbons: Effect of Edge Geometry