Superconducting film on a flexible two-layer zirconia substrate

摘要

A flexible superconducting wire element comprising a flexible tape of partially stabilized ( DIFFERENCE 3 mole % yttria) yttria-stabilized zirconia (YSZ), a buffer layer of fully stabilized (between 8 and 18 mole % yttria, preferably 9 mole %) YSZ deposited on the flexible tape, and a high-temperature, perovskite superconductor such as YBaCuO deposited on the buffer layer. The tape provides the strength while remaining flexible. The buffer layer is flexible because of its thinness ( DIFFERENCE 100 nm), but provides a good crystallographic template for the growth of oriented perovskite superconductors. Thereby, the superconducting properties of the wire element approach those of a superconducting film deposited on a rigid substrate.