Critical Current Densities through Josephson Junctions in Low Magnetic Fields [dataset]

Hampshire, Damian (Superconductivity Group, Centre for Materials Physics, Department of Physics, Durham University, DH1 3LE, UK); Din, Brad (Superconductivity Group, Centre for Materials Physics, Department of Physics, Durham University, DH1 3LE, UK); Raine, Mark (Superconductivity Group, Centre for Materials Physics, Department of Physics, Durham University, DH1 3LE, UK); Blair, Alexander (United Kingdom Atomic Energy Authority, Culham Science Centre, Abingdon, OX14 3DB, UK); Schoofs, Frank (United Kingdom Atomic Energy Authority, Culham Science Centre, Abingdon, OX14 3DB, UK)

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Critical Current Densities through Josephson Junctions in Low Magnetic Fields [dataset] Open Access

Understanding the properties of grain boundaries in polycrystalline superconductors is essential for optimizing their critical current density. Here, we provide computational simulations of 2D Josephson junctions (JJs) in low magnetic fields using time–dependent Ginzburg–Landau theory, since they can be considered a proxy for a grain boundary between two grains. We present data for junctions with a wide range of superconducting electrodes of different Ginzburg–Landau parameter (κ) values and geometries, as well as normal barriers with different strengths of pair–breaking — characterized by the thickness of the junction and the junction condensation parameter ( α̃n ). We describe our results using analytic solutions, and hence provide a detailed description of Josephson junctions in low fields up to that required for a single fluxon to penetrate the junction.

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Resource type: Dataset
Contributors: Creator: Din, Brad ¹
Contact person: Din, Brad ¹
Creator: Blair, Alexander ²
Creator: Schoofs, Frank ²
Editor: Raine, Mark ¹
Creator: Hampshire, Damian ¹
Editor: Hampshire, Damian ¹

¹ Superconductivity Group, Centre for Materials Physics, Department of Physics, Durham University, DH1 3LE, UK
² United Kingdom Atomic Energy Authority, Culham Science Centre, Abingdon, OX14 3DB, UK
Funder: Engineering and Physical Sciences Research Council
Research methods
Other description
Keyword: Josephson junctions
Critical current density (superconductivity)
Superconductivity
Subject: Superconductivity
Location
Language
Cited in: doi:10.1109/TASC.2022.3156908
Identifier: ark:/32150/r1hx11xf268
doi:10.15128/r1hx11xf268
Rights: Creative Commons Attribution 4.0 International (CC BY)
Publisher: Durham University
Date Created

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Depositor: B.P. Din
Date Uploaded: 17 December 2019, 15:12:07
Date Modified: 14 March 2022, 14:03:02
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Last modified: 2022:02:07 10:54:51+00:00

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