Influence of nonuniform critical current density profile on magnetic field behavior of AC susceptibility in 2D Josephson Junction Arrays

Abstract

Employing mutual-inductance measurements we study the magnetic field dependence of complex AC susceptibility of artificially prepared highly ordered (periodic) two-dimensional Josephson junction arrays of unshunted Nb-AlO_x-Nb junctions. The observed behavior can be explained assuming single-plaquette approximation of the overdamped model with an inhomogeneous critical current distribution within a single junction.

4 pages (REVTEX), 6 figures

References in corpus (1)

• Universal Temperature Behavior of Remanent Magnetization Observed in Low-Tc and High-Tc Josephson Junction Arrays

Cited by in corpus (4)

• Dynamical reentrance and geometry imposed quantization effects in Nb-AlOx-Nb Josephson junction arrays
• Manifestation of geometric resonance in current dependence of AC susceptibility for unshunted array of Nb-AlOx-Nb Josephson junctions
• Irreversibility line and low-field grain-boundary pinning in electron-doped superconducting thin films
• Signatures of Topological Transitions in the Spin Susceptibility of Josephson Junctions