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- Title
On the origin of reentrance in 2D Josephson junction arrays.
- Authors
Araujo-Moreira, F. M.; Maluf, W.; Sergeenkov, S.
- 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 ßC. Based on extensive numerical simulations, a phase diagram ßC-ßL is plotted which demarcates the border between the reentrant and non-reentrant behavior in the arrays.
- Subjects
JOSEPHSON effect; SUPERCONDUCTORS; QUANTUM tunneling; JOSEPHSON junctions; MAGNETIC properties
- Publication
European Physical Journal B: Condensed Matter, 2005, Vol 44, Issue 1, p33
- ISSN
1434-6028
- Publication type
Article
- DOI
10.1140/epjb/e2005-00096-4