Evidence for large-scale structures in granular superconductors
S. A. Dodds, S. N. Harrington, R. S. Newrock, K. Loeffler
DOI 10.1103/PhysRevB.33.3115 · Physical Review B
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Abstract
We have made measurements of the temperature and angular dependence of the critical field for superconductivity in thin-film specimens of Al:Al2O3 composites. The measurements lead us to infer that these specimens are composed of one or more layers with thicknesses between the grain size and the overall film thickness. This inference is corroborated by measurements of the fluctuation conductivity. Preliminary data on Al:Te composite films suggest that nonrandom structures of similar scale are also present in this material.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Al:Al2O3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Al:Te Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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