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arXiv:cond-mat/0403573 (cond-mat)
[Submitted on 23 Mar 2004 (v1), last revised 6 May 2004 (this version, v2)]

Title:Frustrated two-dimensional Josephson junction array near incommensurability

Authors:In-Cheol Baek, Young-Je Yun, Mu-Yong Choi
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Abstract: To study the properties of frustrated two-dimensional Josephson junction arrays near incommensurability, we examine the current-voltage characteristics of a square proximity-coupled Josephson junction array at a sequence of frustrations f=3/8, 8/21, 0.382 $(\approx (3-\sqrt{5})/2)$, 2/5, and 5/12. Detailed scaling analyses of the current-voltage characteristics reveal approximately universal scaling behaviors for f=3/8, 8/21, 0.382, and 2/5. The approximately universal scaling behaviors and high superconducting transition temperatures indicate that both the nature of the superconducting transition and the vortex configuration near the transition at the high-order rational frustrations f=3/8, 8/21, and 0.382 are similar to those at the nearby simple frustration f=2/5. This finding suggests that the behaviors of Josephson junction arrays in the wide range of frustrations might be understood from those of a few simple rational frustrations.
Comments: RevTex4, 4 pages, 4 eps figures, to appear in Phys. Rev. B
Subjects: Superconductivity (cond-mat.supr-con)
Cite as: arXiv:cond-mat/0403573 [cond-mat.supr-con]
  (or arXiv:cond-mat/0403573v2 [cond-mat.supr-con] for this version)
  https://doi.org/10.48550/arXiv.cond-mat/0403573
Journal reference: Phys. Rev. B 69, 172501 (2004)
Related DOI: https://doi.org/10.1103/PhysRevB.69.172501

Submission history

From: Young-Je Yun [view email]
[v1] Tue, 23 Mar 2004 02:48:39 UTC (133 KB)
[v2] Thu, 6 May 2004 05:37:33 UTC (133 KB)
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