Anomalous Finite-Size Effect in Superconducting Josephson Junction Arrays

Qing Hu Chen, Lei Han TANG, Peiqing Tong

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

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 languageEnglish
Article number067001
JournalPhysical Review Letters
Volume87
Issue number6
DOIs
Publication statusPublished - 6 Aug 2001

Scopus Subject Areas

  • Physics and Astronomy(all)

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