Nonlinear flux-line dynamics in vanadium films with square lattices of submicron holes

V. Metlushko, U. Welp, G. W. Crabtree, Zhao Zhang, S. R.J. Brueck, B. Watkins, L. E. DeLong, B. Ilic, K. Chung, P. J. Hesketh

Research output: Contribution to journalArticlepeer-review

73 Scopus citations

Abstract

Commensurability effects between the superconducting flux-line lattice and a square lattice (period (Formula presented)) of submicron holes (diameter (Formula presented)) in 1500 Å vanadium films were studied by atomic-force microscopy, dc magnetization, ac susceptibility, magnetoresistivity, and (Formula presented) measurements. Peaks in the susceptibility and critical current at matching fields are found to depend nonlinearly upon the value of external ac field or current, as well as the inferred symmetry of the flux-line lattice.

Original languageEnglish
Pages (from-to)603-607
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume59
Issue number1
DOIs
StatePublished - 1999

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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