HIGH-TEMPERATURE SUPERCONDUCTORS FROM THE GRAIN-BOUNDARY PERSPECTIVE

The above results clearly do not define the final word on grain boundaries in high-temperature superconductors. However, they do show that studying these defects as grain boundaries is important, and that models developed for grain boundary structure can help us understand at least some aspects of their physical properties. The real challenge for materials research may lie ahead, however. Given a more thorough understanding of the origin of grain boundary properties, can we tailor-make Josephson-junction and flux-pinning grain boundaries for sensitive SQUID and high-current density applications?. © 1992, Materials Research Society. All rights reserved.