Transport spectroscopy of Kondo quantum dots coupled by RKKY interaction

Abstract

We develop the theory of conductance of a quantum dot which carries a spin and is coupled via RKKY interaction to another spin-carrying quantum dot. The found dependence of the differential conductance on bias and magnetic field at fixed RKKY interaction strength may allow one to distinguish between the possible ground states of the system. Transitions between the ground states are achieved by tuning the RKKY interaction, and the nature of these transitions can be extracted from the temperature dependence of the linear conductance. The feasibility of the corresponding measurements is evidenced by recent experiments by Craig et al. [cond-mat/0404213].

published version: minor changes, references added

References in corpus (4)

• Kondo effect in quantum dots
• Quantum phase transition in a two-channel-Kondo quantum dot device
• Nonequilibrium Transport through a Kondo Dot: Decoherence Effects
• Singlet-triplet transition in a lateral quantum dot

Cited by in corpus (26)

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• Even-odd effect in Andreev Transport through a Carbon Nanotube Quantum Dot
• Multi-impurity Anderson model for quantum dots coupled in parallel
• Quantum criticality in a double quantum-dot system
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• Two-stage Kondo effect in side-coupled quantum dots: Renormalized perturbative scaling theory and Numerical Renormalization Group analysis
• Many-Body Physics and Quantum Chaos
• Tunneling through triple quantum dots with mirror symmetry
• Kondo effect in coupled quantum dots with RKKY interaction: Finite temperature and magnetic field effects
• Non-local Control of the Kondo Effect in a Double Quantum Dot-Quantum Wire Coupled System
• Two-sites quantum island in the quasi-ballistic regime
• Kondo effect in a one-electron double quantum dot: Oscillations of the Kondo current in a weak magnetic field
• Kondo Physics and Exact Solvability of Double Dots Systems
• Transconductance of a double quantum dot system in the Kondo regime
• Gate-tunable split Kondo effect in a carbon nanotube quantum dot
• Two impurity Kondo problem under Aharonov--Bohm and Aharonov--Casher Effects
• Tunable RKKY interaction in a double quantum dot nanoelectromechanical device
• Transport Properties of Multiple Quantum Dots Arranged in Parallel: Results from the Bethe Ansatz
• The Two-Impurity Anderson Model at Quantum Criticality
• Design and control of spin gates in two quantum dots arrays
• Kondo Effect in Mesoscopic Quantum Dots
• Coherent exchange-coupled nonlocal Kondo impurities
• Underscreened Kondo impurities in a Luttinger liquid
• Magnetic correlation between two local spins in a quantum spin Hall insulator
• The two-impurity Kondo model with spin-orbit interactions
• Sensitivity of the magnetic state of a spin lattice on itinerant electron orbital phase