Giant conductance oscillations in a normal mesoscopic ring induced by an SNS Josephson current

A. Kadigrobov; A. Zagoskin; R. I. Shekhter; M. Jonson

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Giant conductance oscillations in a normal mesoscopic ring induced by an SNS Josephson current

A. Kadigrobov·A. Zagoskin·R. I. Shekhter·M. Jonson

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Abstract

A theoretical explanation of giant conductance oscillations observed in normal mesoscopic rings with superconducting ``mirrors" is proposed. The effect is due to resonant tuning of Andreev levels to the Fermi level, which enhances the transparency of the system to the normal current. The mechanism is demonstrated for a one-dimensional model system.

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A. Kadigrobov, A. Zagoskin, R. I. Shekhter, M. Jonson. 1994-10-21. Giant conductance oscillations in a normal mesoscopic ring induced by an SNS Josephson current. https://arxiv.org/abs/cond-mat/9410080

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