Electron Transport through T-Shaped Double-Dots System
arXiv:cond-mat/0205016 · doi:10.1143/JPSJ.71.2234
Abstract
Correlation effects on electron transport through a system of T-shaped double-dots are investigated, for which only one of the dots is directly connected to the leads. We evaluate the local density of states and the conductance by means of the non-crossing approximation at finite temperatures as well as the slave-boson mean field approximation at zero temperature. It is found that the dot which is not directly connected to the leads considerably influences the conductance, making its behavior quite different from the case of a single-dot system. In particular, we find a novel phenomenon in the Kondo regime with a small inter-dot coupling, i.e. Fano-like suppression of the Kondo-mediated conductance, when two dot levels coincide with each other energetically.
6 pages,7 figures
References in corpus (6)
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- Fano and Kondo resonance in electronic current through nanodevices
- Quantum Phase Transition in a Multi-Level Dot
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Cited by in corpus (14)
- Interference Effects on Kondo-Assisted Transport through Double Quantum Dots
- Fano-Kondo interplay in a side-coupled double quantum dot
- Andreev Transport through Side-Coupled Double Quantum Dots
- Tunneling through triple quantum dots with mirror symmetry
- Crossover between two different Kondo couplings in side-coupled double quantum dots
- Spin-Polarized Transprot through Double Quantum Dots
- Resonance Kondo Tunneling through a Double Quantum Dot at Finite Bias
- Kondo effect in systems with dynamical symmetries
- Kondo Effect in Multiple-Dot Systems
- Anomalous Fano Resonance in Double Quantum Dot System Coupled to Superconductor
- Strong spin Seebeck effect in Kondo T-shaped double quantum dots
- Kondo effect in side coupled double quantum-dot molecule
- Aharonov-Bohm Effect for Parallel and T-shaped Double Quantum Dots
- Zero temperature conductance of parallel T-shape double quantum dots