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The onset of superconductivity in ultrathin amorphous metal films

✍ Scribed by D.B. Haviland; Y. Liu; B. Nease; A.M. Goldman

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 341 KB
Volume: 165-166
Category: Article
ISSN: 0921-4526
DOI: 10.1016/s0921-4526(09)80314-1

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✦ Synopsis

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 hl4e 2 , the quantum resistance for pairs. The data, which extends down to OAK, 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.

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