Physics – Condensed Matter – Superconductivity
Scientific paper
2002-10-21
Physics
Condensed Matter
Superconductivity
7 pages, 5 figures, Submitted to PRL
Scientific paper
10.1103/PhysRevLett.91.147001
The magnetization of an ensemble of isolated lead grains of sizes ranging from below 6 nm to 1000 nm is measured. A sharp disappearance of Meissner effect with lowering of the grain size is observed for the smaller grains. This is a direct observation by magnetization measurement of the occurrence of a critical particle size for superconductivity, which is consistent with Anderson's criterion.
Leitus Gregory
Popovitz-Biro Ronit
Reich Sebastian
Schechter Moshe
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