Weak link properties of YBa2Cu3O7 nanostructures

M.V. Pedyash, D.H.A. Blank, H. Rogalla

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Abstract

YBa2Cu3O7 bridges with widths ranging from 50nm to 3 micrometers were made using electron beam lithography and focused ion beam milling. The current voltage characteristics of the nanobridges show, under microwave irradiation, pronounced Shapiro steps up to the transition temperature. SQUIDs, using these nanobridges, have been made and flux to voltage modulation up to 85K was observed, with a maximum modulation depth of 8 (mu) V at 77K. An unusual temperature dependence of the modulation is observed, which can be explained by assuming an exponential spatial distribution of the superconducting properties near the edge of a superconductor.
Original languageEnglish
Title of host publicationOxide superconductor physics and nano-engineering II
Subtitle of host publication30 January-2 February 1996, San Jose, California
EditorsIvan Bozovic, Davor Pavuna
PublisherSPIE
Pages458-463
Number of pages6
ISBN (Print)9780819420718
DOIs
Publication statusPublished - 18 Apr 1996
EventOxide Superconductor Physics and Nano-Engineering II 1996 - San Jose, United States
Duration: 30 Jan 19962 Feb 1996

Publication series

NameProceedings of SPIE
PublisherSPIE
Volume2697

Conference

ConferenceOxide Superconductor Physics and Nano-Engineering II 1996
CountryUnited States
CitySan Jose
Period30/01/962/02/96

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