1998/03/10 by Robert Haslinger, Haslinger, Robert, Robert Joynt +1
Physics and Astronomy · #Advanced Chemical Physics Studies #FOS: Physical sciences #Magnetic properties of thin films #Physics of Superconductivity and Magnetism #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.cond-mat/9803124
3 pages revtex, 4 eps figures
arxiv created 1998/03/10 · openalex publication_date 1998/03/10 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The existence of Josephson tunneling has been demonstrated between YBa2Cu3O7-δ and Pb with the current flowing along the c-axis of YBa2Cu3O7-δ. This is presumed to come from an s-wave component of the superconductivity in YBa2Cu3O7-δ, perhaps induced by the orthorhombic distortion. This hypothesis by itself appears to be in contradiction with experiments on twinned samples whose tunneling current does not follow random statistics. We present a theory which depends on a competition between the intertwin d-wave coupling and a relatively enhanced s-wave component on the surface. This theory appears to explain, at least qualitatively, all observations made to date.