Annealing Techniques for High Tc Superconducting Oxide Films
Original Publication Date: 1988-Nov-01
Included in the Prior Art Database: 2005-Feb-16
Superconducting oxide films of the YBaCuO and LaSrCuO compositions are generally not superconducting as deposited. They must be fired or annealed at high temperatures, usually in oxygen. This is observed in films made in a variety of ways, e-beam evaporated, sputtered, nitrate deposited, etc. Annealing techniques turn these films from non-superconductors to superconductors, and also cause phase changes and morphology changes.