Remnant resistance in TSUEI´S composite superconductors

The application of a new superconducting composite wire developed by C.C. Tsuei for high-field, high-current uses is explored. The importance of the dish continuous nature of the superconducting filaments in this material is analyzed. Our calculations indicate that practical wire may have a remnant resistivity of 10^-14ohm-cm or less and we report our experiments to date in which we have tried to measure this quantity. We also report our observations of quantum coupling between filaments in this wire.