Magnetization of small lead particles |
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| Authors: | Reich S Leitus G Popovitz-Biro R Schechter M |
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| Affiliation: | Department of Materials and Interfaces, The Weizmann Institute of Science, Rehovot 76100, Israel. |
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| Abstract: | The magnetization of an ensemble of isolated lead grains of sizes ranging from 4 to 1000 nm is measured. A sharp disappearance of the Meissner effect with a 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. |
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