Transport properties of high quality Nb/semiconductor/Nb long Josephson junctions based on metamorphic In0.75Ga0.25As epitaxial layers are reported. Different junction geometries and fabrication procedures are presented that allow a systematic comparison with quasiclassical theory predictions. The impact of junction transparency is highlighted and a procedure capable of yielding a high junction quality factor is identified.
Relevant energy scale in hybrid mesoscopic Josephson junctions / Carillo, F.; Born, D.; Pellegrini, V.; Tafuri, Francesco; Biasiol, G.; Sorba, L.; Beltram, F.. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - 78:(2008), pp. 52506-52509. [10.1103/PhysRevB.78.052506]
Relevant energy scale in hybrid mesoscopic Josephson junctions
Tafuri, Francesco;
2008
Abstract
Transport properties of high quality Nb/semiconductor/Nb long Josephson junctions based on metamorphic In0.75Ga0.25As epitaxial layers are reported. Different junction geometries and fabrication procedures are presented that allow a systematic comparison with quasiclassical theory predictions. The impact of junction transparency is highlighted and a procedure capable of yielding a high junction quality factor is identified.| File | Dimensione | Formato | |
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