Back to Search
Start Over
Superconductivity at the two-dimensional limit
- Source :
- Science. June 5, 2009, Vol. 324 Issue 5932, p1314, 4 p.
- Publication Year :
- 2009
-
Abstract
- Superconductivity in the extreme two-dimensional limit is studied on ultrathin lead films down to two atomic layers, where only a single channel of quantum well states exists. Scanning tunneling spectroscopy reveals that local superconducting order remains robust until two atomic layers, where the transition temperature abruptly plunges to a lower value, depending sensitively on the exact atomic structure of the film. Our result shows that Cooper pairs can still form in the last two-dimensional channel of electron states, although their binding is strongly affected by the substrate.
- Subjects :
- Superconductivity -- Research
Science and technology
Subjects
Details
- Language :
- English
- ISSN :
- 00368075
- Volume :
- 324
- Issue :
- 5932
- Database :
- Gale General OneFile
- Journal :
- Science
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.202124611