Year: 2012
Type: article
Abstract: A 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. We analyze semi-quantitatively the thermal behavior of a typical device.
Source: Applied Physics Letters
DOI: 10.1063/1.4729779
Authors: H. Q. Nguyen, L. M. A. Pascal, Z. H. Peng, O. Buisson, B. Gilles, C. B. Winkelmann, H. Courtois
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1978018579