• Open Access

Critical Currents in Quasiperiodic Pinning Arrays: Chains and Penrose Lattices

Vyacheslav Misko, Sergey Savel’ev, and Franco Nori
Phys. Rev. Lett. 95, 177007 – Published 21 October 2005

Abstract

We study the critical depinning current Jc versus the applied magnetic flux Φ, for quasiperiodic (QP) chains and 2D arrays of pinning centers placed on the nodes of a fivefold Penrose lattice. In QP chains, the peaks in Jc(Φ) are determined by a sequence of harmonics of the long and short segments of the chain. The critical current Jc(Φ) has a remarkable self-similarity. In 2D QP pinning arrays, we predict analytically and numerically the main features of Jc(Φ), and demonstrate that the Penrose lattice of pinning sites provides an enormous enhancement of Jc(Φ), even compared to triangular and random pinning site arrays. This huge increase in Jc(Φ) could be useful for applications.

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  • Received 1 January 2005

DOI:https://doi.org/10.1103/PhysRevLett.95.177007

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Authors & Affiliations

Vyacheslav Misko1,2, Sergey Savel’ev1, and Franco Nori1,2

  • 1Frontier Research System, Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama, 351-0198, Japan
  • 2MCTP, CSCS, Physics Department, University of Michigan, Ann Arbor, Michigan 48109-1040, USA

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Vol. 95, Iss. 17 — 21 October 2005

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It is not necessary to obtain permission to reuse this article or its components as it is available under the terms of the Creative Commons Attribution 3.0 License. This license permits unrestricted use, distribution, and reproduction in any medium, provided attribution to the author(s) and the published article's title, journal citation, and DOI are maintained. Please note that some figures may have been included with permission from other third parties. It is your responsibility to obtain the proper permission from the rights holder directly for these figures.

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