1204.2105 (Yu. S. Barash)

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

Yu. S. Barash

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.

View original: http://arxiv.org/abs/1204.2105