Physics – Condensed Matter – Superconductivity
Scientific paper
2011-11-15
Physics
Condensed Matter
Superconductivity
Scientific paper
A novel method to fabricate large-area superconducting hybrid tunnel junctions with a suspended central normal metal part is presented. The samples are fabricated by combining photo-lithography and chemical etch of a superconductor - insulator - normal metal multilayer. The process involves few fabrication steps, is reliable and produces extremely high-quality tunnel junctions. Under an appropriate voltage bias, a significant electronic cooling is demonstrated.
Buisson Olivier
Courtois Hervé
Gilles Bruno
Nguyen H. Q.
Pascal L. M. A.
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