Abstract
We show that a previously reported discrepancy between simulations of superconducting Josephson junction arrays and the theoretical analysis of Ambegaokar, Halperin, Nelson, and Siggia (AHNS) [Phys. Rev. Lett. 40, 783 (1978)] is rooted in a peculiar finite-size effect under periodic boundary conditions. Our simulation results for the largest array support the power-law I-V curves predicted by AHNS. Analysis of the vortex dynamics reveals two intrinsic length scales set by the applied current, which define three size regimes with distinctive I-V characteristics.
Original language | English |
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Article number | 067001 |
Journal | Physical Review Letters |
Volume | 87 |
Issue number | 6 |
DOIs | |
Publication status | Published - 6 Aug 2001 |
Scopus Subject Areas
- Physics and Astronomy(all)