Barrier technology for DyBa/sub 2/Cu/sub 3/O/sub 7-x/ junctions and related structures

Layered structures which include the high-temperature superconductor DyBa/sub 2/Cu/sub 3/O/sub 7-x/ have been fabricated using molecular beam epitaxy with ozone as the activated oxygen source. A c-axis-oriented DyBa/sub 2/Cu/sub 3/O/sub 7-x/ thin film with a T/sub c/ of 74 K has been grown on a layer of the rare earth sesquioxide Dy/sub 2/O/sub 3/ on a