Verification of zero pair potential in a magnetic metal by superconductive tunnelling |
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Authors: | T. Claeson |
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Affiliation: | Physics Department, Chalmers University of Technology, S-412 96 Gothenburg, Sweden |
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Abstract: | Tunnelling into superconducting multilayers of lead and iron shows that no electron pairs penetrate an iron film if it is thicker than about 5 Å. This proves that the superconducting order parameter decreases to zero within one or two atomic layers in an iron film in contact with a superconductor. |
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