Anomalous Meissner effect in NS junction with spin-active interface

Details Anomalous Meissner effect in NS junction with spin-active interface Anomalous Meissner effect in NS junction with spin-active interface

2011-02-18

arxiv.org/abs/1102.3743v1

Phys. Rev. Lett. 106, 246601 (2011)

Physics

Condensed Matter

Superconductivity

4+ pages, 5 figures

Scientific paper

We investigate Meissner effect in normal metal/superconductor junctions where the interface is spin-active. We find that orbital magnetic susceptibility of the normal metal shows highly nontrivial behaviors. In particular, the magnetic susceptibility depends on the temperature in an oscillatory fashion, accompanied by its sign change. Correspondingly, magnetic field and current density can spatially oscillate in the normal metal. The possible spontaneous formation of the current pattern is also discussed. These results are attributed to the generation of odd-frequency pairing due to the spin-active interface.

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