Experimental investigations on the proximity effect in Nb/Al bilayers by using Nb/AlxOy/Nb/Al/AlxOy/Nb structures with different Al thickness are reported. Three-terminal stacked devices were fabricated by using a new process based on a whole-wafer deposition of the multilayer without any vacuum breaking in order to ensure a high control of the interfaces. The quasiparticle density of states at both sides of the bilayer and the effective interface coupling parameters were obtained by a deconvolution of the I-V data. They ...
Double stacked superconducting junctions for investigating the proximity effect in Nb/Al bilayers
Granata C;Esposito E;
2002
Abstract
Experimental investigations on the proximity effect in Nb/Al bilayers by using Nb/AlxOy/Nb/Al/AlxOy/Nb structures with different Al thickness are reported. Three-terminal stacked devices were fabricated by using a new process based on a whole-wafer deposition of the multilayer without any vacuum breaking in order to ensure a high control of the interfaces. The quasiparticle density of states at both sides of the bilayer and the effective interface coupling parameters were obtained by a deconvolution of the I-V data. They ...File in questo prodotto:
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