Microwave response of YBaCuO thin-film Dayem bridges

Journal Article · Mon Apr 09 00:00:00 EDT 1990 · Applied Physics Letters; (USA)

DOI:https://doi.org/10.1063/1.103210· OSTI ID:7122424

Gijs, M A.M.; Jansen, R J.E. ^[1]

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1. Philips Research Laboratories, 5600 JA Eindhoven, The Netherlands (NL)

1-{mu}m-wide Dayem bridges were patterned with a pulsed Xe laser in {ital c}-axis-oriented YBaCuO films prepared according to the BaF{sub 2} method. The microbridges have a critical current density of 2{times}10{sup 6} A/cm{sup 2} at 77 K, which is typical for an epitaxial film without grain boundaries. When microwave radiation in the centimeter wavelength range is applied, we observe current steps in the current-voltage characteristic up to 72 K. The dependence of these steps on microwave power is compared with the model of Golovashkin and Lykov {l brace}Zh. Eksp. Teor. Fiz. {bold 74}, 214 (1978) (Sov. Phys. JETP {bold 47}, 110 (1978)){r brace}; we find that the step amplitude is smaller than predicted.

• OSTI ID: 7122424
• Journal Information: Applied Physics Letters; (USA), Journal Name: Applied Physics Letters; (USA) Vol. 56:15; ISSN APPLA; ISSN 0003-6951
• Country of Publication: United States
• Language: English

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36 MATERIALS SCIENCE
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Cermets
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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
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COPPER COMPOUNDS
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ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ENERGY BEAM DEPOSITION
GRAIN BOUNDARIES
JOSEPHSON EFFECT
JOSEPHSON JUNCTIONS
JUNCTIONS
MICROSTRUCTURE
MICROWAVE RADIATION
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
SUPERCONDUCTING JUNCTIONS
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YTTRIUM COMPOUNDS
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