Constructing Spin Interference Devices from Nanometric Rings
arXiv:0710.4770 · doi:10.1103/PhysRevB.76.235120
Abstract
The study of nanospintronic devices utilizing coherent transport through molecular scale multiply-connected geometries in the presence of moderate magnetic fields is presented. It is shown how two types of simple devices, spin filters and spin splitters (or Stern-Gerlach devices) may be constructed from molecular nanometric rings utilizing the Aharonov-Bohm effect. The current is calculated within a single electron approximation and within a many-body master equation approach where charging effects are accounted for in the Coulomb Blockade regime. We provide rules and tools to develop and analyze efficient spintronic devices based on nanometric interferometers.
16 pages, 8 figures, submitted to Phys. Rev. B
References in corpus (26)
- Molecular Transport Junctions: Vibrational Effects
- The Statistical Theory of Quantum Dots
- Energy spectra of quantum rings
- Spin interference effects in ring conductors subject to Rashba coupling
- Quantum master equation for electron transport through quantum dots and single molecules
- Electrical resistance: an atomistic view
- Spin-dependent (magneto)transport through a ring due to spin-orbit interaction
- Quantum rings as electron spin beam splitters
- Solving rate equations for electron tunneling via discrete quantum states
- Quantum Transport in Nonuniform Magnetic Fields: Aharonov-Bohm Ring as a Spin Switch
- Aharonov-Bohm Interferometry with Interacting Quantum Dots: Spin Configurations, Asymmetric Interference Patterns, Bias-Voltage-Induced Aharonov-Bohm Oscillations, and Symmetries of Transport Coefficients
- Mesoscopic Stern-Gerlach device to polarize spin currents
- Current collapse in tunneling transport through benzene
- Rate equations for Coulomb blockade with ferromagnetic leads
- Probing the Kondo density of states in a three-terminal quantum ring
- Theory for transport through a single magnetic molecule: Endohedral N@C60
- Aharonov-Bohm Physics with Spin II: Spin-Flip Effects in Two-dimensional Ballistic Systems
- Charge oscillations in Quantum Dots: Renormalization group and Hartree method calculations
- Effect of spin-orbit coupling on zero-conductance resonances in asymmetrically coupled one-dimensional rings
- Nonmonotonic charge occupation in double dots
- Aharonov-Bohm Physics with Spin I: Geometric Phases in One-dimensional Ballistic Rings
- Spin Filter Effects in Mesoscopic Ring Structures
- Coherent charge transport through molecular wires: influence of strong Coulomb repulsion
- Inelastic effects in Aharonov-Bohm molecular interferometer
- Ballistic Quantum Transport: Effect of Geometrical Phases
- Magnetoresistance Devices Based on Single Walled Carbon Nanotubes
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- The formation of nonequilibrium steady states in interacting double quantum dots: When coherences dominate the charge distribution
- Stability of spintronic devices based on quantum ring networks
- Magnetoconductance properties of rectangular arrays of spintronic quantum rings
- Quantum rings with time dependent spin-orbit coupling: Rabi oscillations, spintronic Schrodinger-cat states, and conductance properties
- Spin-orbit interaction induced spin selective transmission through a multi-terminal mesoscopic ring
- Spin-selective transmission through a single-stranded magnetic helix
- Numerical cookbook for electronic quantum transport at finite frequency
- Interplay between interference and Coulomb interaction in the ferromagnetic Anderson model with applied magnetic field
- Externally controlled selective spin transfer through a two-terminal bridge setup
- Oscillating spin-orbit interaction as a source of spin-polarized wave packets in two-terminal nanoscale devices
- Negative Differential Spin Conductance by Population Switching
- Analytical study of nano-scale logical operations