Tunneling through the Quantum Dot Coupled between Normal and Superconducting Leads

• Authors: A. Donabidowicz , T. Domański , K. Wysokiński
• Languages of publication: EN

Abstracts

EN

We study the charge tunneling via the quantum dot coupled to normal and superconducting leads, where the superconducting electrode has either an isotropic or anisotropic (of d-wave symmetry) energy gap. We use the single impurity Anderson model and apply the nonequilibrium Green function formalism to determine the differential tunneling conductance. The influence of the proximity effect between the quantum dot and superconductor on the transport properties of the system manifests itself in the Andreev conductance.

Keywords

EN

73.23.-b; 74.20.Fg; 74.45.+c

Discipline

• 74.20.Fg: BCS theory and its development
• 74.45.+c: Proximity effects; Andreev reflection; SN and SNS junctions
• 73.23.-b: Electronic transport in mesoscopic systems

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2007
• Volume: 112
• Issue: 2
• Pages: 157-160

Dates

published

2007-08

received

2007-06-09

Contributors

author

A. Donabidowicz

• Institute of Physics, M. Curie-Skłodowska University, Radziszewskiego 10, 20-031 Lublin, Poland

author

T. Domański

• Institute of Physics, M. Curie-Skłodowska University, Radziszewskiego 10, 20-031 Lublin, Poland

author

K. Wysokiński

• Institute of Physics, M. Curie-Skłodowska University, Radziszewskiego 10, 20-031 Lublin, Poland

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Identifiers

DOI

10.12693/APhysPolA.112.157