Hanle Effect in Transport through Quantum Dots Coupled to Ferromagnetic Leads

Abstract

We suggest a series of transport experiments on spin precession in quantum dots coupled to one or two ferromagnetic leads. Dot spin states are created by spin injection and analyzed via the linear conductance through the dot, while an applied magnetic field gives rise to the Hanle effect. Such a Hanle experiment can be used to determine the spin lifetime in the quantum dot, to measure the spin injection efficiency into the dot, as well as proving the existence of intrinsic spin precession which is driven by the Coulomb interaction.

7 pages, 4 figures, minor changes, added references

References in corpus (13)

• Quantum Computation with Quantum Dots
• Electron spin decoherence in quantum dots due to interaction with nuclei
• Spin-flip transitions between Zeeman sublevels in semiconductor quantum dots
• Kondo effect in quantum dots coupled to ferromagnetic leads
• Electrical Spin Injection in a Ferromagnetic / Tunnel Barrier/ Semiconductor Heterostructure
• Quantum Dot as Spin Filter and Spin Memory
• Theory of Transport through Quantum-Dot Spin Valves in the Weak-Coupling Regime
• Interaction-driven spin precession in quantum-dot spin valves
• Detection of Single Spin Decoherence in a Quantum Dot via Charge Currents
• Single Spin Dynamics and Decoherence in a Quantum Dot via Charge Transport
• Using single quantum states as spin filters to study spin polarization in ferromagnets
• Non-equilibrium transport through a vertical quantum dot in the absence of spin-flip energy relaxation
• Zero-dimensional spin accumulation and spin dynamics in a mesoscopic metal island

Cited by in corpus (19)

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• Spin effects in single electron tunneling
• Probing level renormalization by sequential transport through double quantum dots
• Spin-polarized current and shot noise in the presence of spin flip in a quantum dot via nonequilibrium Green's functions
• Frequency-Dependent Current Noise through Quantum-Dot Spin Valves
• Adiabatic charge and spin pumping through quantum dots with ferromagnetic leads
• Spin-Polarized Electron Transport through Nanometer-Scale Al Grains
• Spin torque driven electron paramagnetic resonance of a single spin in a pentacene molecule
• Spin correlation and entanglement detection in Cooper pair splitters by current measurements using magnetic detectors
• Spin resonance without spin splitting
• Spin switching via quantum dot spin valves
• Theory of a Magnetically-Controlled Quantum-Dot Spin Transistor
• Saturation of Spin-Polarized Current in Nanometer Scale Aluminum Grains
• Influence of spin waves on transport through a quantum-dot spin valve
• Fork stamping of pristine carbon nanotubes onto ferromagnetic contacts for spin-valve devices
• Contrasting exchange-field and spin-transfer torque driving mechanisms in all-electric electron spin resonance
• Modelling Electron Spin Accumulation in a Metallic Nanoparticle
• Coherent and Dissipative Spin Torques in Quantum Dots: A Unified Framework for Quantum Spin Dynamics
• Revealing the internal spin dynamics in a double quantum dot by periodic voltage modulation