The onset of superconductivity in ultrathin amorphous metal films

D. B. Haviland, Y. Liu, B. Nease, A. M. Goldman

Research output: Contribution to journalArticlepeer-review

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Abstract

The onset of superconductivity in homogeneous ultrathin films grown incrementally is found to occur when their normal state sheet resistance falls below a value close to h/4e2, the quantum resistance for pairs. The data, which extends down to 0.4k, further suggest that in the T → 0 limit such films are either superconducting or insulating, and that there may be a superconductorinsulator transition controlled by disorder.

Original languageEnglish (US)
Pages (from-to)1457-1458
Number of pages2
JournalPhysica B: Condensed Matter
Volume165-166
DOIs
StatePublished - Jan 1 1990

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