Vortex shells in mesoscopic triangles of amorphous superconducting thin films

N. Kokubo, H. Miyahara, S. Okayasu, T. Nojima

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Direct observation of vortex states confined in mesoscopic regular triangle dots of amorphous Mo–Ge thin films was made with a scanning superconducting quantum interference device microscope. The observed magnetic images illustrate clearly how vortices are distributed over the triangle dots by forming not only commensurate triangular clusters, but also unique patterns imposed by incommensurability. We discuss the results in terms of vortex shells and construct the packing sequence of vortices in the multiple shell structure.

Original languageEnglish
Pages (from-to)42-45
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume530
DOIs
Publication statusPublished - 2016 Nov 15

Keywords

  • Mesoscopic superconductors
  • Scanning SQUID microscope
  • Shell structures
  • Vortex matter

ASJC Scopus subject areas

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

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