Enhancing critical current density of cuprate superconductors

摘要

The present invention concerns the enhancement of critical current densities in cuprate superconductors. Such enhancement of critical current densities include using wave function symmetry and restricting movement of Abrikosov (A) vortices, Josephson (J) vortices, or Abrikosov-Josephson (A-J) vortices by using the half integer vortices associated with d-wave symmetry present in the grain boundary.

主权项

1. A method of creating meandering grain boundaries in superconducting cuprate tape comprising:
introducing half integer d-wave symmetry associated vortices at grain boundaries; and sintering two different sized metallic particles together creating rough boundaries, wherein movement of Abrikosov-Josephson vortices along said grain boundaries is restricted.