Spin selective Aharonov-Bohm oscillations in a lateral triple quantum dot

Abstract

We present a theory for spin selective Aharonov-Bohm oscillations in a lateral triple quantum dot. We show that to understand the Aharonov-Bohm (AB) effect in an interacting electron system within a triple quantum dot molecule (TQD) where the dots lie in a ring configuration requires one to not only consider electron charge but also spin. Using a Hubbard model supported by microscopic calculations we show that, by localizing a single electron spin in one of the dots, the current through the TQD molecule depends not only on the flux but also on the relative orientation of the spin of the incoming and localized electrons. AB oscillations are predicted only for the spin singlet electron complex resulting in a magnetic field tunable "spin valve".

4 pages, 4 figures

References in corpus (9)

• Driven coherent oscillations of a single electron spin in a quantum dot
• Stability Diagram of a Few-Electron Triple Dot
• Topological Hunds rules and the electronic properties of a triple lateral quantum dot molecule
• Magnetically Tunable Kondo - Aharonov-Bohm Effect in a Triangular Quantum Dot
• A Generic Model for Current Collapse in Spin Blockaded Transport
• Kondo screening in a magnetically frustrated nanostructure: Exact results on a stable, non-Fermi-liquid phase
• Theory of spin, electronic and transport properties of the lateral triple quantum dot molecule in a magnetic field
• Numerical renormalization group study of two-channel three-impurity triangular clusters
• Theory of electronic transport through a triple quantum dot in the presence of magnetic field

Cited by in corpus (22)

• Charge frustration in a triangular triple quantum dot
• Control of Spin Blockade by AC Magnetic Fields in Triple Quantum Dots
• Dephasing-assisted transport in linear triple quantum dots
• Interference effects in the Coulomb blockade regime: current blocking and spin preparation in symmetric nanojunctions
• Spin-polarized currents in double and triple quantum dots driven by ac magnetic fields
• Linear and nonlinear Stark effect in triangular molecule
• Effects of anisotropy and Coulomb interactions on quantum transport in a quadruple quantum-dot structure
• Coherent transport in a linear triple quantum dot made from a pure-phase InAs nanowire
• Theory of electronic properties and quantum spin blockade in a gated linear triple quantum dot with one electron spin each
• Tunneling spectroscopy of spin-selective Aharonov-Bohm oscillations in a lateral triple quantum dot molecule
• Tunable current circulation in triangular quantum-dot metastructures
• Investigation of the Aharonov-Bohm and Aharonov-Casher Topological Phases for Quantum Entangled States in 2+1 Dimensions
• Coulomb interactions induced perfect spin filtering effect in a quadruple quantum-dot cell
• Reappearance of Kondo Effect in Serially Coupled Symmetric Triple Quantum Dots
• Quasienergy spectrum and tunneling current in ac-driven triple quantum dot shuttles
• Spin selective transport through Aharonov-Bohm and Aharonov-Casher triple quantum dot systems
• Testing Bell-CHSH Inequalities Using topological Aharonov-Casher and He-McKellar-Wilkens Phases
• Master equation based steady-state cluster perturbation theory
• Electron-Electron interactions, topological phase and optical properties of a charged artificial benzene ring
• Accurately heat flow distribution based on a triple quantum dot
• Circular-polarization sensitive metamaterial based on triple quantum-dot molecules
• The Role of Alternance Symmetry in Magnetoconductance