Observation of splintered Josephson vortices at grain boundaries in YBa2Cu3O7-d

R.G. Mints, I. Papiashvili, J.R. Kirtley, Johannes W.M. Hilgenkamp, G. Hammerl, J. Mannhart

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Abstract

We have directly observed well-separated Josephson vortex splinters with unquantized magnetic flux at asymmetric 45° grain boundaries in YBa2Cu3O7-¿ films by imaging magnetic flux with scanning SQUID microscopy. The existence of these splinter vortices has been predicted and is well described by a model based on dx2-y2 pairing symmetry and facetting of the grain boundary on a length scale shorter than the Josephson penetration depth.
Original languageUndefined
Pages (from-to)067004/1-067004/4
Number of pages4
JournalPhysical review letters
Volume89
Issue number6
DOIs
Publication statusPublished - 2002

Keywords

  • IR-43435
  • METIS-206647

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