YBa2Cu3O7 nano-bridge junctions and dc SQUIDs made by focused ion beam milling
- Blank, David H.A.
- Booij, W.E.
- Booij, Wilfred
- Hilgenkamp, Johannes W.M.
- Vulink, B.W.
- Vulink, Bart
- Veldhuis, Dick
- Rogalla, Horst
Publication date
January 1995
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE) ISSN
1051-8223 Citation count (estimate)
7Abstract
YBa/sub 2/Cu/sub 3/O/sub 7/ nano-bridges with widths ranging from 200 to 800 nm were made using Focused Ion Beam milling. The I-V characteristics of the narrowest nano-bridges show, under microwave irradiation, pronounced Shapiro steps up to the transition temperature. An inductively shunted single layer SQUID, using these nano-bridges, has been realised by a combination of Focused Ion Beam milling and selective epitaxial growth. Flux to voltage modulation up to 82 K was observed, with a maximum modulation depth of 3.7 /spl mu/V at 78 K
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