Upper critical field of superconducting Pb films above and below the percolation threshold
A. Gerber, G. Deutscher
DOI 10.1103/PhysRevLett.63.1184 · Physical Review Letters
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Abstract
The upper critical field of percolating lead films above and below the percolation threshold has been measured by monitoring the sample’s electrical resistance as a function of an applied magnetic field. We find that it remains constant across the threshold, as predicted by theory based on the fractal nature of the infinite clusters and of large finite clusters.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Pb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 7.2 | Pressure unresolved | onset |
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