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Proceedings Paper

Weak link properties of YBa2Cu3O7 nanostructures
Author(s): Maxim V. Pedyash; Dave H. A. Blank; Horst Rogalla
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Paper 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.

Paper Details

Date Published: 5 July 1996
PDF: 6 pages
Proc. SPIE 2697, Oxide Superconductor Physics and Nano-Engineering II, (5 July 1996); doi: 10.1117/12.250252
Show Author Affiliations
Maxim V. Pedyash, Univ. Twente (Netherlands)
Dave H. A. Blank, Univ. Twente (Netherlands)
Horst Rogalla, Univ. Twente (Netherlands)

Published in SPIE Proceedings Vol. 2697:
Oxide Superconductor Physics and Nano-Engineering II
Ivan Bozovic; Davor Pavuna, Editor(s)

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