Kondo screening cloud in a double-quantum dot system

Abstract

We analyze the transport properties of two artificial magnetic impurities coupled togethervia a tunable RKKY interaction mediated by conduction electrons of a finite size one dimensional wire. We show that the sign of the RKKY interaction can be controlled by gating the wire. We investigate the interplay between finite size effects and RKKY interaction and found that the two artificial impurities start to interact each-other as soon as the Kondo screening cloud length becomes larger that the length of the wire. This should allow to give a lower experimental estimate of the Kondo screening cloud length.

9 pages, 3 figures, to be published in Phys. Rev. B

References in corpus (7)

• Tunable Non-local Spin Control in a Coupled Quantum Dot System
• Kondo effect in quantum dots
• RKKY and magnetic field interactions in coupled Kondo quantum dots
• Transport spectroscopy of Kondo quantum dots coupled by RKKY interaction
• Transport through quantum dots in mesoscopic circuits
• The Kondo Screening Cloud around a Quantum Dot: Large-scale numerical Results
• Spectral densities of Kondo impurities in nanoscopic systems

Cited by in corpus (13)

• Quantum phase transitions in the systems of parallel quantum dots
• Non-local Control of the Kondo Effect in a Double Quantum Dot-Quantum Wire Coupled System
• Competition between Kondo screening and indirect magnetic exchange in a quantum box
• Investigating early and late-time epochs in $f(Q)$ gravity
• Kondo Quantum Dots and the Novel Kondo-doublet interaction
• Screening mechanisms in magnetic nanostructures
• A thermally driven out-of-equilibrium two-impurity Kondo system
• Numerical study of finite size effects in the one-dimensional two-impurity Anderson model
• Tunable RKKY interaction in a double quantum dot nanoelectromechanical device
• Underscreened Kondo impurities in a Luttinger liquid
• Spin-spin correlations between two Kondo impurities coupled to an open Hubbard chain
• Kondo effect in a side-coupled double-quantum-dot system embedded in a mesoscopic ring
• Spectroscopic analysis of finite size effects around a Kondo quantum dot