RKKY and magnetic field interactions in coupled Kondo quantum dots

Abstract

We investigate theoretically the transport properties of two independent artificial Kondo impurities. They are coupled together via a tunable Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction. For strong enough antiferromagnetic RKKY interaction, the impurity density of states increases with the applied in-plane magnetic field. This effect can be used to distinguish between antiferromagnetic and ferromagnetic RKKY interactions. These results may be relevant to explain some features of recent experiments by Craig et al. (cond-mat/0404213).

4 pages, 3 figures

References in corpus (14)

• Quantum Computation with Quantum Dots
• Kondo Physics in a Single Electron Transistor
• A Tunable Kondo Effect in Quantum Dots
• Tunable Non-local Spin Control in a Coupled Quantum Dot System
• Coherent coupling of two quantum dots embedded in an Aharonov-Bohm ring
• Conformal Field Theory Approach to the 2-Impurity Kondo Problem: Comparison with Numerical Renormalization Group Results
• Electronic correlations in transport through coupled quantum dots
• Kondo resonant spectra in coupled quantum dots
• Quantum dots with even number of electrons: Kondo effect in a finite magnetic field
• Kondo effect induced by a magnetic field
• Anomalous magnetic splitting of the Kondo resonance
• Spin fractionalization of an even number of electrons in a Quantum dot
• Mean Field Theory of the Kondo Effect in Quantum Dots with an Even Number of Electrons
• Kondo effect in coupled quantum dots under magnetic fields

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