Magnetic field of Josephson vortices outside superconductors

2008/02/29 by V. G. Kogan, V. V. Dobrovitski
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Josephson effect #Lambda #Magnetic field #Penetration depth #Physics #Physics of Superconductivity and Magnetism #Pi Josephson junction #Quantum and electron transport phenomena #Quantum mechanics #Superconducting tunnel junction #Superconductivity #Vortex #cond-mat.mtrl-sci #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.77.132504

5 RevTeX pages, 3 eps figures. The second version includes more detailed explanations and corrections, and slightly modified figures

arxiv created 2008/03/20 · openalex publication_date 2008/04/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We consider the structure of Josephson vortices approaching the junction boundary with vacuum in large-area Josephson junctions with the Josephson length \ensuremathλ_J large relative to the London penetration depth \ensuremathλ_L. Using the stability argument for one-dimensional solitons with respect to two-dimensional perturbations, it is shown that on the scale \ensuremathλ_J, the Josephson vortices do not spread near the boundary in the direction of the junction. The field distribution in vacuum due to the Josephson vortex is evaluated, the information needed for the scanning superconducting quantum interference device microscopy.

Citations

• Magnetic field of an in-plane vortex outside a layered superconductor
• Comments on Nonlinear Wave Equations as Models for Elementary Particles
• Electromagnetic waves in a Josephson junction in a thin film