Magneto-optical observation of dynamic relaxation in YBa2Cu3O7-δ thin films

M. R. Koblischka, T. H. Johansen, H. Bratsberg, L. Půst, Y. Shen, P. Vase

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Using magneto-optical visualization of the flux in superconductors, the dependence of the flux distributions on the rate of sweep of the external magnetic field dHcxt/dt ('dynamic relaxation') is directly observed for YBa2Cu3O7-δ thin films patterned into small rectangles. The differences in the flux patterns are clearly detectable especially when the sample is not fully penetrated. Various ways of analysing the flux patterns in order to determine the dynamic relaxation rate Q quantitatively from the magneto-optical images are discussed.

Original languageEnglish
Pages (from-to)10909-10918
Number of pages10
JournalJournal of Physics Condensed Matter
Issue number49
Publication statusPublished - 1997 Dec 8
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics


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