Effects of vortex-vortex interactions on ion-track pinning in high-TC superconductors

K. E. Gray, D. G. Steel, J. D. Hettinger, D. J. Miller, B. R. Washburn, M. Ware, J. T. Parkman, M. E. Yoder, C. Moreau, M. M. Eddy

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Many superconductor applications rely on the ability to pin vortex lattices. This ability depends on structural defects to pin individual vortices, but vortex-vortex interactions often play an important role in pinning the other vortices. Experimental progress on this complex problem can be made by introducing random arrays of well-defined pinning centers and studying the flux dynamics for a range of vortex densities (i. e. , fields). The results of such studies in epitaxial Tl2Ba2CaCu2Oy films containing ion tracks show the importance of vortex-vortex interactions. As an example, the effective pinning field of the defects rises to many times the ion-dose field for temperatures well below TC.

Original languageEnglish (US)
Pages (from-to)1987-1992
Number of pages6
JournalIEEE Transactions on Applied Superconductivity
Volume7
Issue number2 PART 2
DOIs
StatePublished - 1997

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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