Physics – Condensed Matter – Superconductivity
Scientific paper
2004-03-31
Physics
Condensed Matter
Superconductivity
4 pages, 3 figures
Scientific paper
10.1103/PhysRevLett.93.217005
By combining very low temperature scanning tunneling microscopy and spectroscopy on a TiN film we have observed a non uniform state comprising of superconducting (S) and normal (N) areas. The local density of states displays a spatial dependence between S and N different from the usual proximity effect. We conclude that mesoscopic fluctuations might play a major role in accordance with recent theories on superconductor-normal metal quantum transition.
Chapelier C.
Escoffier Walter
Hadacek Nicolas
Villégier Jean-Claude
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