Westig, M. P., Selig, S., Jacobs, K., Klapwijk, T. M. and Honingh, C. E. (2013). Improved Nb SIS devices for heterodyne mixers between 700GHz and 1.3 THz with NbTiN transmission lines using a normal metal energy relaxation layer. J. Appl. Phys., 114 (12). MELVILLE: AMER INST PHYSICS. ISSN 1089-7550
Full text not available from this repository.Abstract
In this paper, we demonstrate experimentally the implementation of a niobium-trilayer junction with an aluminum-oxide tunnel barrier, embedded in a high-gap superconducting niobium-titanium-nitride circuit. Previously reported heating by quasiparticle trapping is removed by inserting a normal metal layer of gold between the niobium junction and the niobium-titanium-nitride layer. We analyze in dc-characterization measurements the cooling of the nonequilibrium quasiparticles in various device geometries having different gold layer thickness and shape. Our work is concluded with remarks for future heterodyne mixer experiments using our device technology. (C) 2013 AIP Publishing LLC.
Item Type: | Journal Article | ||||||||||||||||||||||||
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URN: | urn:nbn:de:hbz:38-475641 | ||||||||||||||||||||||||
DOI: | 10.1063/1.4822167 | ||||||||||||||||||||||||
Journal or Publication Title: | J. Appl. Phys. | ||||||||||||||||||||||||
Volume: | 114 | ||||||||||||||||||||||||
Number: | 12 | ||||||||||||||||||||||||
Date: | 2013 | ||||||||||||||||||||||||
Publisher: | AMER INST PHYSICS | ||||||||||||||||||||||||
Place of Publication: | MELVILLE | ||||||||||||||||||||||||
ISSN: | 1089-7550 | ||||||||||||||||||||||||
Language: | English | ||||||||||||||||||||||||
Faculty: | Unspecified | ||||||||||||||||||||||||
Divisions: | Unspecified | ||||||||||||||||||||||||
Subjects: | no entry | ||||||||||||||||||||||||
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URI: | http://kups.ub.uni-koeln.de/id/eprint/47564 |
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