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Analysis of the periodicity of voltage versus applied flux curves of planar and three-dimensional SQUIDs in the presence of coupling inhomogeneity

R De Luca 2009 Supercond. Sci. Technol. 22 125010 (6pp)   doi: 10.1088/0953-2048/22/12/125010  Help

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R De Luca
DMI—University of Salerno, I-84084 Fisciano (SA), Italy

Abstract. Coupling inhomogeneities in the Josephson junctions of planar 0-SQUIDs and π-SQUIDs and of three-dimensional SQUIDs are considered. Starting from the properties of planar SQUIDs, it is shown that slight non-homogeneous couplings of the twelve junctions in three-dimensional superconducting interferometers do not affect the periodicity properties of voltage versus applied flux curves. The results are obtained by applying a rigorous and general analytic approach to planar and three-dimensional superconducting devices.

Print publication: Issue 12 (December 2009)
Received 27 June 2009, in final form 8 September 2009
Published 23 October 2009

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