Interstitial flux phases in a superconducting niobium film with a square lattice of artificial pinning centers

V. Metlushko, U. Welp, G. W. Crabtree, R. Osgood, S. D. Bader, L. E. De Long, Zhao Zhang, S. R.J. Brueck, B. Ilic, K. Chung, P. J. Hesketh

Research output: Contribution to journalArticlepeer-review

130 Scopus citations

Abstract

We demonstrate that a square lattice of artificial pinning centers in a superconducting Nb film induces the formation of highly ordered interstitial vortex phases with different symmetries for external magnetic fields as high as the eighth matching field. These “supermatching” phases are identified by distinct differences in the behavior of their critical currents, magnetoresistivity, and magnetization. Our results are consistent with predictions of supermatching lattice symmetries by recent numerical simulations.

Original languageEnglish
Pages (from-to)R12585-R12588
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume60
Issue number18
DOIs
StatePublished - 1999

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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