Double proximity effect in lateral S-NF-S junctions
Contribuinte(s) |
Urrestilla Urizabal, Jon Aarts, Jan Voltan, Stefano Allan, Milan F. CIENCIA Y TECNOLOGIA ZIENTZIA ETA TEKNOLOGIA F. Grado en Física Fisikako Gradua |
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Data(s) |
27/04/2016
27/04/2016
27/04/2016
15/07/2015
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Resumo |
We investigate planar Josephson junctions where the intermediate spacer between the two superconductors is an hybrid structure made by a normal metal and a ferromagnet. The different behaviors of the S-N-S junctions with thicknesses of 50 nm in both Cu and Nb layers, and S-N/F-S junctions with 10 nm of Co, 50 nm of Cu and 50 nm of Nb are studied. In this way, we analyze the influence of the ferromagnetic exchange interaction on the proximity effect. A dramatic supression of the josephson critical current of the Nb-(Cu/Co)-Nb junctions is observed. We believe that the reason for this is due to the length scale of the superconducting correlations of the electrons and holes of the weak link is larger than the thickness of Cu/Co bilayer. |
Identificador |
http://hdl.handle.net/10810/17995 62797-655367-09 18229-655367 |
Idioma(s) |
eng es |
Direitos |
Este trabajo está bajo Licencia Creative Commons Reconocimiento (by) info:eu-repo/semantics/openAccess |
Palavras-Chave | #superconductivity #proximity effect |
Tipo |
info:eu-repo/semantics/bachelorThesis |