Correlated Electron Tunneling through Two Separate Quantum Dot Systems with Strong Capacitive Interdot Coupling

2008/10/30 by A. Hübel, Alexander Hübel, Karsten Held +4 · 3 citations
Engineering · Physics and Astronomy · #Molecular Junctions and Nanostructures #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall #cond-mat.str-el

paper · pdf · doi:10.1103/physrevlett.101.186804

published as Phys. Rev. Lett. 101, 186804 (2008) · 5 pages, 3 figures, published in Phys. Rev. Lett. Oct. 30th

openalex publication_date 2008/10/30 · arxiv created 2008/11/17 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

A system consisting of two independently contacted quantum dots with a strong electrostatic interaction shows an interdot Coulomb blockade when the dots are weakly tunnel coupled to their leads. How the blockade can be overcome by correlated tunneling when tunnel coupling to the leads increases is studied experimentally. The experimental results are compared with numerical renormalization group calculations using predefined (measured) parameters. Combining our experimental and theoretical results we identify transport through Kondo correlations due to the electrostatic interaction between the two dots.

Citations

• Orbital Kondo effect in carbon nanotubes
• The renormalization group: Critical phenomena and the Kondo problem
• Landauer formula for the current through an interacting electron region

Cited by

• Spin-polarized current generation and detection by a double quantum dot structure
• Kondo effects and shot noise enhancement in a laterally coupled double quantum dot
• Measurement Back-Action in Stacked Graphene Quantum Dots

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