A peak in the bose glass line at the first matching field of nanostructures of pinning sites

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Abstract

Using an extensive series of molecular dynamic simulations on driven vortex lattices interacting with nanostructures of periodic square arrays of pinning sites of fixed density, we have obtained the BT phase diagram representing a Bose glass to vortex liquid-phase transition. In solving the over damped equation of vortex motion, we took into account the vortexvortex repulsion interaction, the attractive vortexpinning interaction, and the driving Lorentz force at several values of temperature. We have found that the location of the Bose glass line (TBG-line) depends on the pinning strength of the pinning sites. We have also found that for each pinning strength value, there is an interesting peak of the TBG-line that occurs at the first matching field when the number of vortices equals the number of pinning sites in the sample.

Original languageEnglish
Pages (from-to)4655-4664
Number of pages10
JournalInternational Journal of Modern Physics B
Volume23
Issue number22
DOIs
Publication statusPublished - Sep 10 2009

Keywords

  • Glass temperature
  • Matchingeld
  • Pinning
  • Vortex-glass phase

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Condensed Matter Physics

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