Planar Josephson Tunnel Junctions in a Transverse Magnetic Field

Details Planar Josephson Tunnel Junctions in a Transverse Magnetic Field Planar Josephson Tunnel Junctions in a Transverse Magnetic Field

2007-06-05

arxiv.org/abs/0706.0700v5

J. Appl. Phys. vol.102, 093911 (2007)

Physics

Condensed Matter

Superconductivity

5 pages, 2 figures, submitted to Journal of Applied Physics

Scientific paper

10.1063/1.2809310

Traditionally, since the discovery of the Josephson effect in 1962, the magnetic diffraction pattern of planar Josephson tunnel junctions has been recorded with the field applied in the plane of the junction. Here we discuss the static junction properties in a transverse magnetic field where demagnetization effects imposed by the junction geometry and configuration of the electrodes are important. Measurements of the critical current versus magnetic field in planar Nb-based high-quality junctions with different geometry, size and critical current density show that it is advantageous to use a transverse magnetic field rather than an in-plane field to suppress the Josephson tunnel current and Fiske resonances in practical applications.

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