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arXiv · 1411.1626

Double path interference and magnetic oscillations in Cooper pair transport through a single nanowire

S. V. Mironov·A. S. Mel'nikov·A. I. Buzdin
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Abstract

We show that the critical current of the Josephson junction consisting of superconducting electrodes coupled through a nanowire with two conductive channels can reveal the multi-periodic magnetic oscillations. The multi-periodicity originates from the quantum mechanical interference between the channels affected by both the strong spin-orbit coupling and Zeeman interaction. This minimal two-channel model is shown to explain the complicated interference phenomena observed recently in Josephson transport through Bi nanowires.

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S. V. Mironov, A. S. Mel'nikov, A. I. Buzdin. 2014-11-06. Double path interference and magnetic oscillations in Cooper pair transport through a single nanowire. https://doi.org/10.1103/physrevlett.114.227001

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