Destruction of global superconductivity in quench-condensed metal films
R. S. Markiewicz
DOI 10.1103/PhysRevB.37.644 · Physical Review B
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Abstract
It is known that global superconductivity (wherein the resistance of a film vanishes) is destroyed when the film resistance exceeds 6.5 kΩ per square. A number of features of the data (low-temperature plateaus, exponential growth of low-temperature resistance with normal-state resistance, enhancement of resistance below Tc in high resistance films) can be explained by a simple model of localization, assuming sample inhomogeneity and shorting effects by isolated superconducting grains. In addition, a transition from weak to strong localization in the normal state is clearly identified.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Sn Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Ga Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 6 | Pressure not reported | onset |
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