Commensurate and incommensurate vortex states confined in mesoscopic triangles of weak pinning superconducting thin films

Nobuhito Kokubo, Hajime Miyahara, Satoru Okayasu, Tsutomu Nojima

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

We report on the direct observation of vortex states confined in equilateral and isosceles triangular dots of weak pinning amorphous superconducting thin films with a scanning superconducting quantum interference device microscope. The observed images illustrate not only pieces of a triangular vortex lattice as commensurate vortex states, but also incommensurate vortex states including metastable ones. We comparatively analyze vortex configurations found in different sample geometries and discuss the symmetry and stability of commensurate and incommensurate vortex configurations against deformations of the sample shape.

Original languageEnglish
Article number043704
Journaljournal of the physical society of japan
Volume84
Issue number4
DOIs
Publication statusPublished - 2015 Apr 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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