1997/03/06 by J. R. Kirtley, K. A. Moler, Kathryn A. Moler +1 · 3 citations
Earth and Planetary Sciences · Physics and Astronomy · #Advanced Condensed Matter Physics #High-pressure geophysics and materials #Physics of Superconductivity and Magnetism #cond-mat.supr-con
paper · pdf · doi:10.1103/physrevb.56.886
13 pages, TEX,+ 7 figures, postscript
arxiv created 1997/03/06 · openalex publication_date 1997/07/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
The spontaneous flux generation and magnetic field modulation of the critical current in a 0-\ensuremathπ Josephson junction are calculated for different ratios of the junction length L to the Josephsen penetration depth \ensuremathλJ, and different ratios of the 0-junction length to the \ensuremathπ-junction length. These calculations apply to a Pb-YBa2Cu3O_7\ensuremath-\ensuremathδ (YBCO) c-axis-oriented junction with one YBCO twin boundary, as well as other experimental systems. Measurements of such a junction can provide information on the nature of the c-axis Josephson coupling and the symmetry of the order parameter in YBCO. We find spontaneous flux even for very short symmetric 0-\ensuremathπ junctions, but asymmetric junctions have qualitatively different behavior.