Kondo effects in a triangular triple quantum dot with lower symmetries
arXiv:1008.1821 · doi:10.1103/PhysRevB.83.205304
Abstract
The triangular triple quantum dot is an interesting system which can demonstrate various types of the Kondo effects, such as the one due to the local spin S=1 moment caused by the Nagaoka ferromagnetic mechanism and the SU(4) Kondo effect. We theoretically study the low-temperature properties and the Kondo energy scale of the triangular triple quantum dot, using the Wilson numerical renormalization group. We have explored a wide parameter region of the electron-filling and distortions which break the symmetry of an equilateral structure. Our results give a comprehensive overview of how the Kondo behavior varies in the different the regions in the wide parameter space of the triangular triple quantum dot.
18 pages; 21 figures (Figs.17 and 20 are added)
References in corpus (12)
- Two path transport measurements on a triple quantum dot
- Magnetically Tunable Kondo - Aharonov-Bohm Effect in a Triangular Quantum Dot
- Zero-bias conductance in carbon nanotube quantum dots
- Kondo screening in a magnetically frustrated nanostructure: Exact results on a stable, non-Fermi-liquid phase
- Numerical renormalization group study of two-channel three-impurity triangular clusters
- Kondo effect in double quantum dots with inter-dot repulsion
- Kondo effects in a triangular triple quantum dot: NRG study in the whole region of the electron filling
- Fermi-liquid versus non-Fermi-liquid behavior in triple quantum dots
- Tunneling through triple quantum dots with mirror symmetry
- Renormalization group study of capacitively coupled double quantum dots
- Three-orbital Kondo effect in single quantum dot system with plural electrons
- Gate-voltage dependence of Kondo effect in a triangular quantum dot
Cited by in corpus (12)
- Local moment formation and Kondo screening in impurity trimers
- Long-range Exchange Interaction in Triple Quantum Dots in the Kondo Regime
- Reappearance of Kondo Effect in Serially Coupled Symmetric Triple Quantum Dots
- Emergent Electric Polarization by Kondo Effect in a Triangular Triple Quantum Dot
- Manipulability of the Kondo effect in a T-shaped triple-quantum-dot structure
- Magnetic Kondo regimes in a frustrated half-filled trimer
- Anomalous magnetotransport through reflection-symmetric artificial molecules
- SU(2)-SU(4) Kondo Crossover and Emergent Electric Polarization in a Triangular Triple Quantum Dot
- Antisymmetric Spin-Orbit Coupling Effect on Kondo-Induced Electric Polarization in a Triangular Triple Quantum Dot
- Functional renormalization group study of parallel double quantum dots: Effects of asymmetric dot-lead couplings
- Coherent time-dependent oscillations and temporal correlations in triangular triple quantum dots
- Kondo Screening of Local Moments in a Triangular Triple Quantum Dot Connected to Normal and Superconducting Leads