Electrical properties of 45° grain boundaries of epitaxial YBaCuO, dominated by crystalline microstructure and d-wave-symmetry

C. A. Copetti, F. Rüders, B. Oelze, Ch Buchal, B. Kabius, J. W. Seo

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

We show that the microstructure of 45° grain boundaries in epitaxial YBaCuO together with the dx2-y2 symmetry of the superconducting wave function accounts for the measured magnetic field modulation patterns of the critical currents. Our results resolve the conflict between contradictory observations of other authors and unfold a consistent picture of d-wave-symmetry of the YBaCuO superconducting ground state. Evidence for currentless junctions with a phase difference of π is given.

Original languageEnglish (US)
Pages (from-to)63-70
Number of pages8
JournalPhysica C: Superconductivity and its applications
Volume253
Issue number1-2
DOIs
StatePublished - Oct 20 1995

All Science Journal Classification (ASJC) codes

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

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