Mutual Inductance Route to Paramagnetic Meissner Effect in 2D Josephson Junction Arrays

Details Mutual Inductance Route to Paramagnetic Meissner Effect in 2D Josephson Junction Arrays Mutual Inductance Route to Paramagnetic Meissner Effect in 2D Josephson Junction Arrays

2001-03-08

arxiv.org/abs/cond-mat/0103199v1

Physics

Condensed Matter

Superconductivity

REVTeX 3.1, 5 pages, 5 figures

Scientific paper

10.1103/PhysRevB.64.144518

We simulate two-dimensional Josephson junction arrays, including full mutual- inductance effects, as they are cooled below the transition temperature in a magnetic field. We show numerical simulations of the array magnetization as a function of position, as detected by a scanning SQUID which is placed at a fixed height above the array. The calculated magnetization images show striking agreement with the experimental images obtained by A. Nielsen et al. The average array magnetization is found to be paramagnetic for many values of the applied field, confirming that paramagnetism can arise from magnetic screening in multiply-connected superconductors without the presence of d-wave superconductivity.

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