Calculation of superconducting granular bridges as networks of Josephson junctions

Journal Article · Wed Nov 01 04:00:00 EST 1989 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.343952· OSTI ID:5259418

Kuhlemann, T; Hinken, J H ^[1]

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1. Institut f ur Hochfrequenztechnik, TU Braunschweig, Postfach 3329, D-3300 Braunschweig, Federal Republic of Germany (DE)

In order to understand the mechanisms which determine the {ital I}-{ital V} characteristics of granular bridges, a model was established treating the granular bridge as a network of Josephson junctions. Calculations of many diverse configurations of such networks show that only certain superpositions of voltages of single junctions lead to Shapiro steps in the overall {ital I}-{ital V} curves of the network. These steps can be obtained when the granular bridge consists of a few grains only and when the ac current is applied with not too high a frequency. Then, characteristics of single junctions determine the behavior of the network, and Shapiro steps probably will appear.

• OSTI ID: 5259418
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 66:9; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

426001* -- Engineering-- Superconducting Devices & Circuits-- (1990-)
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ELECTRIC BRIDGES
ELECTRIC CONDUCTIVITY
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
EQUIPMENT
GRANULAR MATERIALS
JOSEPHSON JUNCTIONS
JUNCTIONS
MATERIALS
PHYSICAL PROPERTIES
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTORS