Non-enhanced laser evaporation of oxide superconductors

摘要

The present invention relates to a method of directly forming a thin, orientated layer, or film, of superconducting materials, suitably mixtures of Pervoskite-type superconducting oxides, on a support base, or substrate, by depositing the layer, or film, in an ionized oxygen atmosphere using a laser beam means. The present process is carried out at temperatures sufficiently high that the film adheres to the substrate, but sufficiently low that a superconducting layer is directly deposited the substrate. Preferably the process is carried out at a temperature less than about 450 degrees C. Temperatures as low as 400 degrees C. have been found useful.