Signatures of spin-orbit interaction in transport properties of finite carbon nanotubes in a parallel magnetic field

Abstract

The transport properties of finite nanotubes placed in a magnetic field parallel to their axes are investigated. Upon including spin-orbit coupling and curvature effects, two main phenomena are analyzed which crucially depend on the tube's chirality: i) Finite carbon nanotubes in a parallel magnetic field may present a suppression of current due to the localization at the edges of otherwise conducting states. This phenomenon occurs due to the magnetic-field dependent open boundary conditions obeyed by the carbon nanotube's wave functions. The transport is fully suppressed above threshold values of the magnetic field which depend on the nanotube chirality, length and on the spin-orbit coupling. ii) Reversible spin polarized currents can be obtained upon tuning the magnetic field, exploiting the curvature-induced spin-orbit splitting.

14 pages, 13 figures

References in corpus (18)

• Intrinsic and Rashba Spin-orbit Interactions in Graphene Sheets
• Spin-orbit coupling in curved graphene, fullerenes, nanotubes, and nanotube caps
• Coupling of Spin and Orbital Motion of Electrons in Carbon Nanotubes
• Spin-orbit interaction and anomalous spin relaxation in carbon nanotube quantum dots
• Nanospintronics with carbon nanotubes
• Spin-orbit interaction in chiral carbon nanotubes probed in pulsed magnetic fields
• Hofstadter butterflies of carbon nanotubes: Pseudofractality of the magnetoelectronic spectrum
• Coulomb versus spin-orbit interaction in few-electron carbon-nanotube quantum dots
• Kondo effect in carbon nanotube quantum dots with spin-orbit coupling
• Few-electron physics in a nanotube quantum dot with spin-orbit coupling
• Spin-Orbit Effects in Carbon-Nanotube Double Quantum Dots
• Spin transport across carbon nanotube quantum dots
• Controlling edge states of zigzag carbon nanotubes by the Aharonov-Bohm flux
• Giant magnetoresistance of multiwall carbon nanotubes: modeling the tube/ferromagnetic-electrode burying contact
• The low energy spectrum of finite size metallic SWNTs
• The spectrum of interacting metallic carbon nanotubes: Exchange effects and universality
• Magnetic field induced localization in carbon nanotubes
• Competition between magnetic field dependent band structure and coherent backscattering in multiwall carbon nanotubes

Cited by in corpus (28)

• Model spin-orbit coupling Hamiltonians for graphene systems
• Josephson current through interacting double quantum dots with spin-orbit coupling
• Broken SU(4) symmetry in a Kondo-correlated carbon nanotube
• Majorana quasiparticles in semiconducting carbon nanotubes
• Josephson current in carbon nanotubes with spin-orbit interaction
• Valley coupling in finite-length metallic single-wall carbon nanotubes
• The two classes of low energy spectra in finite carbon nanotubes
• Blocking transport resonances via Kondo entanglement in quantum dots
• Topology and zero energy edge states in carbon nanotubes with superconducting pairing
• Tight-binding simulations of electrically driven spin-valley transitions in carbon nanotube quantum dots
• Spin filtering and entanglement detection due to spin-orbit interaction in carbon nanotube cross-junctions
• Secondary electron interference from trigonal warping in clean carbon nanotubes
• Cooperative phenomenon in a rippled graphene: Chiral spin guide
• Spin-orbit interaction in the graphitic nanocone
• Spin-orbit effects in armchair carbon nanotubes: analytical results
• Metallic Carbon Nanotube Quantum Dots with Broken Symmetries as a Platform for Tunable Terahertz Detection
• Transverse profile and 3D spin canting of a Majorana state in carbon nanotubes
• Spin-orbit interaction in bent carbon nanotubes: resonant spin transitions
• Spin-valley resolved photon-assisted tunneling in carbon nanotube double quantum dots
• Two-electron n-p double quantum dots in carbon nanotubes
• Spin-valley dynamics of electrically driven ambipolar carbon-nanotube quantum dots
• Kondo Phase Transitions of Magnetic Impurities in Carbon Nanotubes
• Preparation of a three-photon state in a nonlinear cavity - quantum dot system
• Superconductivity in correlated carbon nanotubes under pressure: A Bogoliubov-de Gennes study
• Electronic structure of (1e,1h) states of carbon nanotube quantum dots
• Staggered spin-orbit interaction in a nanoscale device
• Spin-dependent transmission in curved graphene superlattice
• Boundary conditions and Green function approach of the spin-orbit interaction in the graphitic nanocone