Relevant energy scale in hybrid mesoscopic Josephson junctions
classification
❄️ cond-mat.supr-con
keywords
junctionhighjosephsonjunctionsqualityallowcapablecomparison
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Transport properties of high quality Nb/semiconductor/Nb long Josephson junctions based on metamorphic In_0.75Ga_0.25As 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.
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