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Giant vortices, rings of vortices, and reentrant behavior in type-1.5 superconductors

V. H. Dao, L. F. Chibotaru, T. Nishio, and V. V. Moshchalkov
Phys. Rev. B 83, 020503(R) – Published 24 January 2011

Abstract

We predict that in a bulk type-1.5 superconductor, the competing magnetic responses of the two components of the order parameter can result in group-stabilized giant vortices and individual rings of vortices in the absence of any extrinsic pinning or confinement mechanism. We also determine within the Ginzburg-Landau theory a condition for the robustness of type 1.5 in the vicinity of the critical temperature, and we find a rich phase diagram with successions of behaviors such as type 1 type 1.5 type 2 type 1.5 when temperature decreases.

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  • Received 9 September 2010

DOI:https://doi.org/10.1103/PhysRevB.83.020503

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.

© 2011 American Physical Society

Authors & Affiliations

V. H. Dao1,2, L. F. Chibotaru1, T. Nishio1,3, and V. V. Moshchalkov1,*

  • 1Institute for Nanoscale Physics and Chemistry (INPAC), Katholieke Universiteit Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium
  • 2Centre de Physique Moléculaire Optique et Hertzienne, UMR 5798 du CNRS, Université Bordeaux 1, 351 cours de la Libération, F-33405 Talence, France
  • 3Department of Physics, Tokyo University of Science, Kagurazaka, Shinjuku, Tokyo 162-8601, Japan

  • *Corresponding author: victor.moshchalkov@fys.kuleuven.be

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Vol. 83, Iss. 2 — 1 January 2011

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