Giant conductance oscillations in a normal mesoscopic ring induced by an SNS Josephson current
A. Kadigrobov, A. Zagoskin, R. I. Shekhter, M. Jonson
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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