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arXiv · 1204.2105

Probing interfacial pair breaking in tunnel junctions based on the first and the second harmonics of the Josephson current

Yu. S. Barash
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Abstract

It will be shown that a pronounced interfacial pair breaking can be identified in Josephson tunnel junctions provided the first j_{1c} and the second j_{2c} harmonics of the supercurrent, as well as the depairing current in the bulk j_{dp}, are known. Namely, within the Ginzburg-Landau theory a strong interfacial pair breaking results in the relation j_{2c}j_{dp}>>j_{1c}^2, while in standard junctions, with negligibly small pair breaking, the relation of opposite character takes place.

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Yu. S. Barash. 2012-04-10. Probing interfacial pair breaking in tunnel junctions based on the first and the second harmonics of the Josephson current. https://doi.org/10.1103/physrevb.85.174529

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