Superconductor-quantum dot-superconductor junction in the Kondo regime

Yshai Avishai; Anatoly Golub; Andrei D. Zaikin

Superconductor-quantum dot-superconductor junction in the Kondo regime

Yshai Avishai, Anatoly Golub, Andrei D. Zaikin

Department of Physics

Research output: Contribution to journal › Article › peer-review

69 Scopus citations

Abstract

Electron transport between two superconductors through an Anderson impurity in the Kondo regime is investigated within the slave boson mean-field approximation. The current, shot-noise power and Fano factor are displayed versus the applied bias voltage in the subgap region and found to be strongly dependent on the ratio between the Kondo temperature T_K and the superconducting gap Δ. In particular, the I-V curve exposes an excess current in the limit T_K/Δ≫1.

Original language	English
Article number	041301
Pages (from-to)	413011-413014
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	67
Issue number	4
State	Published - 15 Jan 2003

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

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title = "Superconductor-quantum dot-superconductor junction in the Kondo regime",

abstract = "Electron transport between two superconductors through an Anderson impurity in the Kondo regime is investigated within the slave boson mean-field approximation. The current, shot-noise power and Fano factor are displayed versus the applied bias voltage in the subgap region and found to be strongly dependent on the ratio between the Kondo temperature TK and the superconducting gap Δ. In particular, the I-V curve exposes an excess current in the limit TK/Δ≫1.",

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AU - Avishai, Yshai

AU - Golub, Anatoly

AU - Zaikin, Andrei D.

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Y1 - 2003/1/15

N2 - Electron transport between two superconductors through an Anderson impurity in the Kondo regime is investigated within the slave boson mean-field approximation. The current, shot-noise power and Fano factor are displayed versus the applied bias voltage in the subgap region and found to be strongly dependent on the ratio between the Kondo temperature TK and the superconducting gap Δ. In particular, the I-V curve exposes an excess current in the limit TK/Δ≫1.

AB - Electron transport between two superconductors through an Anderson impurity in the Kondo regime is investigated within the slave boson mean-field approximation. The current, shot-noise power and Fano factor are displayed versus the applied bias voltage in the subgap region and found to be strongly dependent on the ratio between the Kondo temperature TK and the superconducting gap Δ. In particular, the I-V curve exposes an excess current in the limit TK/Δ≫1.

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M3 - Article

AN - SCOPUS:0037438533

SN - 0163-1829

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JO - Physical Review B - Condensed Matter and Materials Physics

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IS - 4

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ER -

Superconductor-quantum dot-superconductor junction in the Kondo regime

Abstract

ASJC Scopus subject areas

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