Translational correlations in the vortex array at the surface of a type-II superconductor.

We discuss the statistical mechanics of magnetic flux lines in a finite-thickness slab of type-II superconductor. The long-wavelength properties of a flux-line liquid in a slab geometry are described by a hydrodynamic free energy that incorporates the boundary conditions on the flux lines at the sample's surface as a surface contribution to the free energy. Bulk and surface weak disorder are modeled via Gaussian impurity potentials. This free energy is used to evaluate the two-dimensional structure factor of the flux-line tips at the sample surface. We find that surface interaction always dominates in determining the decay of translational correlations in the asymptotic long-wavelength limit. On the other hand, such large length scales have not been probed by the decoration experiments

• Publication year

  1992

• Venue

  Physical Review B (Condensed Matter)

• Publication date

  1992-12-08

• Fields of study

  Medicine, Physics

• Identifiers
  DOI 10.1103/PhysRevB.47.12214arXiv cond-mat/9212011PMID 10005394
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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