On the origin of reentrance in 2D Josephson Junction Arrays

Abstract

A comparative study of the magnetic properties of shunted and unshunted two-dimensional Josephson junction arrays (2D-JJA) is presented. Using a single-plaquette approximation of the 2D-JJA model, we were able to successfully fit all our experimental data (for the temperature, AC and DC field dependencies of susceptibility) and demonstrate that the dynamic reentrance of AC susceptibility is directly linked to the value of the Stewart-McCumber parameter β_C. Based on extensive numerical simulations, a phase diagram β_C vs β_L is plotted which demarcates the border between the reentrant and non-reentrant behavior in the arrays.

9 pages (REVTEX), 10 figures

References in corpus (2)

• Paramagnetic Meissner effect and related dynamical phenomena
• Electric field dependence of thermal conductivity of a granular superconductor: Giant field-induced effects predicted

Cited by in corpus (7)

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• Universal R-C crossover in current-voltage characteristics for unshunted array of overdamped Nb-AlO_x-Nb Josephson junctions
• Thermal expansion of Josephson junctions as an elastic response to an effective stress field
• On Field Induced Diaelastic Effect in a Small Josephson Contact
• Diode effect in a skyrmion-coupled high-temperature Josephson junction