Threshold for superconductivity in ultrathin amorphous gallium films

H. M. Jaeger, D. B. Haviland, A. M. Goldman, B. G. Orr

Research output: Contribution to journalArticlepeer-review

209 Scopus citations


Systematic studies of the onset of superconductivity in ultrathin amorphous Ga films have revealed the existence of a threshold dependent only on the normal-state sheet resistance. Global superconductivity, or zero resistance, develops only when the normal-state sheet resistance falls below 6000 /-. This result agrees with previous observations on crystalline Sn films and further supports the notion of a universal resistance threshold.

Original languageEnglish (US)
Pages (from-to)4920-4923
Number of pages4
JournalPhysical Review B
Issue number7
StatePublished - Jan 1 1986


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