Generic first-order orientation transition of vortex lattices in type II superconductors

Kenta M. Suzuki, Kenji Inoue, Predrag Miranović, Masanori Ichioka, Kazushige Machida

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21 Citations (Scopus)

Abstract

The first-order transition of vortex lattices (VLs) observed in various superconductors with fourfold symmetry is explained microscopically by quasi-classical Eilenberger theory combined with nonlocal London theory. This transition is intrinsic in the generic successive VL phase transition due to either gap anisotropy or Fermi velocity anisotropy. This is also suggested by the electronic states around vortices. Ultimately, the origin of this phenomenon is attributed to somewhat hidden frustrations of a spontaneous symmetry-broken hexagonal VL in the underlying fourfold crystalline symmetry.

Original languageEnglish
Article number013702
Journaljournal of the physical society of japan
Volume79
Issue number1
DOIs
Publication statusPublished - Jan 1 2010

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Keywords

  • Anisotropic superconductors
  • Eilenberger theory
  • Nonlocal london theory
  • Vortex lattice transition

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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