In-plane anisotropy of Josephson-vortex flow resistance in Bi 2Sr2CaCu2O 8+y

S. Ooi, T. Mochiku, S. Yu, E. S. Sadki, N. Ishikawa, K. Hirata

Research output: Contribution to journalConference articlepeer-review


Recently, we have found periodic oscillations of Josephson-vortex flow resistance as a function of in-plane field in Bi2Sr 2CaCu2O8+y single crystals [Phys. Rev. Lett. 89 (2002) 247002]. This phenomenon was interpreted to arise from a matching effect between the lattice spacing of Josephson vortices and the width of samples. To clarify further for this explanation, and study the effects of the sample boundaries on the Josephson-vortex flow, we have measured the in-plane anisotropy of Josephson-vortex flow resistance. When the field orientation is parallel to boundaries, the flow resistance is strongly suppressed, and the periodic oscillations are clearly observed. This suggests that the effects of sample boundaries are important for the Josephson-vortex flow, especially at the regime of low currents.

Original languageEnglish
Pages (from-to)545-546
Number of pages2
JournalPhysica C: Superconductivity and its applications
Issue number1-4
Publication statusPublished - Aug 2004
Externally publishedYes
EventProceedings of the International Conference on Materials - Rio de Janeiro, Brazil
Duration: May 25 2003May 30 2003


  • BiSr CaCuO
  • Josephson-vortex flow
  • Periodic oscillations

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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