Investigation of step-edge microbridges for application as microwave detectors

Step-edge microbridges of Y-Ba-Cu-O are investigated for use as microwave detectors at 35 GHz. The superconducting thin film is laser deposited upon a defined substrate step-edge, which is formed by wet chemical etching of an SrTiO sub(3) layer, which again was laser deposited on an LaAlO sub(3) sub...

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Bibliographic Details
Published inSuperconductor science & technology Vol. 4; no. 9; pp. 482 - 484
Main Authors Daginnus, M, Richter, J, Hinken, J H
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.09.1991
Institute of Physics
Subjects
Applied sciences
Electronics
Exact sciences and technology
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Superconducting devices
Microwave device
Detector
Superconductor device
Micro bridge
Barium Copper Yttrium Oxides Mixed
Thin film
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Summary:Step-edge microbridges of Y-Ba-Cu-O are investigated for use as microwave detectors at 35 GHz. The superconducting thin film is laser deposited upon a defined substrate step-edge, which is formed by wet chemical etching of an SrTiO sub(3) layer, which again was laser deposited on an LaAlO sub(3) substrate. The voltage response of the device is directly proportional to the power of the microwave signals within a dynamic range of 50 dB and exhibits an NEP of 3.2 x 10 super(-9) W/Hz super(1/2) at 74 K.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0953-2048
1361-6668
DOI:10.1088/0953-2048/4/9/029