Symmetries of quantum transport with Rashba spin-orbit: Graphene spintronics

Abstract

The lack of some spatial symmetries in planar devices with Rashba spin-orbit interaction opens the possibility of producing spin polarized electrical currents in absence of external magnetic field or magnetic impurities. We study how the direction of the spin polarization of the current is related to spatial symmetries of the device. As an example of these relations we study numerically the spin-resolved current in graphene nanoribbons. Different configurations are explored and analyzed to demonstrate that graphene nanoflakes may be used as excellent spintronic devices in an all-electrical setup.

arXiv comment8 pages, 7 figures, revised and extended version

References in corpus (23)

• Spintronics: Fundamentals and applications
• Graphene Spintronics
• Electronic States of Graphene Nanoribbons
• Intrinsic and Rashba Spin-orbit Interactions in Graphene Sheets
• Spin-orbit coupling in curved graphene, fullerenes, nanotubes, and nanotube caps
• Quantum Anomalous Hall Effect in Graphene from Rashba and Exchange Effects
• Exceptional ballistic transport in epitaxial graphene nanoribbons
• Spin-Orbit Proximity Effect in Graphene
• Impurity induced spin-orbit coupling in graphene
• Rashba effect in the graphene/Ni(111) system
• Gated Silicene as a tunable source of nearly 100% spin-polarized electrons
• Graphene for spintronics: giant Rashba splitting due to hybridization with Au
• Generation and Electric Control of Spin-Coupled Valley Current in WSe2
• Spin-orbit coupling in hydrogenated graphene
• Strong tuning of Rashba spin orbit interaction in single InAs nanowires
• All-Electric Quantum Point Contact Spin Valve
• Helicoidal Fields and Spin Polarized Currents in CNT-DNA Hybrids
• Thermoelectric effects in graphene with local spin-orbit interaction
• Origami-based spintronics in graphene
• Rashba spin-orbit interaction in graphene armchair nanoribbons
• Spin-helical Dirac states in graphene induced by polar-substrate surfaces with giant spin-orbit interaction: a new platform for spintronics
• Topological Proximity Effects in Graphene Nanoribbon Heterostructures
• Spin polarization direction switch based on an asymmetrical quantum wire

Cited by in corpus (18)

• Room temperature spin Hall effect in graphene/MoS${}_2$ van der Waals heterostructures
• Spin Orbit Coupling in Graphene Induced by Heavy Adatoms with Electrons in the Outer-Shell $p$ Orbitals
• All-Electrical Generation of Spin-Polarized Currents in Quantum Spin Hall Insulators
• A group-theoretic approach to the origin of chirality-induced spin selectivity in non-magnetic molecular junctions
• Enhanced Spin-Flip Scattering by Surface Roughness in WS${}_2$ and MoS${}_2$ Armchair Nanoribbons
• Spin-polarized currents in corrugated graphene nanoribbons
• All-electrical production of spin-polarized currents in carbon nanotubes: Rashba spin-orbit interaction
• Controlled engineering of spin polarized transport properties in a zigzag graphene nanojunction
• Electronic fractal patterns in building Sierpinski-triangles molecular systems
• Interface sensitivity on spin transport through a three-terminal graphene nanoribbon
• Graphene-based spin switch device via modulated Rashba field and strain
• Defect-enhanced Rashba spin-polarized currents in carbon nanotubes
• Unconventional charge and spin dependent transport properties of a graphene nanoribbon with line-disorder
• Enhancement of Rashba spin-orbit coupling by electron-electron interaction
• Charge-spin interconversion in graphene-based systems from density functional theory
• Magnetic adatoms in two and four terminal graphene nanoribbons: A comparison between their spin polarized transport
• Spin Torque Oscillator and Magnetization Switching in double barrier Rashba Zeeman Magnetic Tunnel Junction
• Chiral Bloch states in single layer graphene with Rashba spin-orbit coupling: Spectrum and spin current density