Direct observation of non-local effects in a superconductor

Details Direct observation of non-local effects in a superconductor Direct observation of non-local effects in a superconductor

2003-10-09

arxiv.org/abs/cond-mat/0310203v1

Physics

Condensed Matter

Superconductivity

5 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.92.087001

We have used the technique of low energy muon spin rotation to measure the local magnetic field profile B(z) beneath the surface of a lead film maintained in the Meissner state (z depth from the surface, z <= 200 nm). The data unambiguously show that B(z) clearly deviates from an exponential law and represent the first direct, model independent proof for a non-local response in a superconductor.

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