Adiabatic pumping through an interacting quantum dot with spin-orbit coupling

Abstract

We study adiabatic pumping through a two-level quantum dot with spin-orbit coupling. Using a diagrammatic real-time approach, we calculate both the pumped charge and spin for a periodic variation of the dot's energy levels in the limit of weak tunnel coupling. Thereby, we compare the two limits of vanishing and infinitely large charging energy on the quantum dot. We discuss the dependence of the pumped charge and pumped spin on gate voltages, the symmetry in the tunnel-matrix elements and spin-orbit coupling strength. We identify the possibility to generate pure spin currents in the absence of charge currents.

References in corpus (28)

• Spintronics: Fundamentals and applications
• Scattering approach to parametric pumping
• An Adiabatic Quantum Electron Pump
• Mesoscopic quantum transport: Resonant tunneling in the presence of strong Coulomb interaction
• Resonant tunneling through ultrasmall quantum dots: zero-bias anomalies, magnetic field dependence, and boson-assisted transport
• Experimental Realization of a Quantum Spin Pump
• Zero-bias anomalies and boson-assisted tunneling through quantum dots
• Theory of Transport through Quantum-Dot Spin Valves in the Weak-Coupling Regime
• An Adiabatic Quantum Pump of Spin Polarized Current
• Interaction-driven spin precession in quantum-dot spin valves
• The Effect of Spin Splitting on the Metallic Behavior of a Two-Dimensional System
• Geometry, Statistics and Asymptotics of Quantum Pumps
• Pumping spin with electrical fields
• Adiabatic pumping through interacting quantum dots
• Adiabatic pumping through a quantum dot with coulomb interactions: A perturbation expansion in the tunnel coupling
• Mesoscopic effects in adiabatic spin pumping
• Robust single-parameter quantized charge pumping
• Probing level renormalization by sequential transport through double quantum dots
• Charge pumping in carbon nanotube quantum dots
• Adiabatic charge and spin pumping through quantum dots with ferromagnetic leads
• Transport through quantum-dot spin valves containing magnetic impurities
• Josephson current through interacting double quantum dots with spin-orbit coupling
• Tunable dynamical channel blockade in double-dot Aharonov-Bohm interferometers
• Charge and spin pumping through a double quantum dot
• Generation of Spin Entanglement in Nonequilibrium Quantum Dots
• Interplay of Coulomb interaction and spin-orbit effects in multi-level quantum dots
• Resonant all-electric spin pumping with spin-orbit coupling
• Quantum Dot Spin Filter in Resonant Tunneling and Kondo Regimes

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• Nonadiabaticity in spin pumping under relaxation
• Fermi liquid theory of resonant spin pumping