The onset of superconductivity in ultrat
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D.B. Haviland; Y. Liu; B. Nease; A.M. Goldman
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Article
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1990
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Elsevier Science
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English
โ 341 KB
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