Anomalous Proximity Effect in an Inhomogeneous Disordered Superconductor
W. Escoffier, C. Chapelier, N. Hadacek, J.-C. Villégier
DOI 10.1103/PhysRevLett.93.217005 · Physical Review Letters
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Abstract
By combining very low temperature scanning tunneling microscopy and spectroscopy on a TiN film we have observed a nonuniform 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 describing superconductor–normal-metal quantum transition.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| TiN Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.68 | Pressure not reported | unknown |
| TiN Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.27 | Pressure not reported | unknown |
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