Patent ID: 7981840
Filing Date: 2011-07-19
Classification: H01L,Y10S

Abstract:
1. A method of manufacturing a Bi-based oxide superconductor thin film having a c-axis parallel to a (110) or (10-10) crystal plane of a substrate and one of a-axis and b-axis being oriented perpendicular to the (110) or (10-10) crystal plane of the substrate, the method comprising the steps of: depositing the oxide superconductor film on a vicinal substrate selected from the group consisting of LaSrAlO heteroepitaxially growing the one of a-axis and b-axis oriented oxide superconductor thin film at a first temperature, and then homoepitaxially growing the oxide superconductor thin film on the heteroepitaxially grown film at a second temperature which is higher than the first temperature, wherein a lattice constant of the crystal plane of the superconductor thin film is an approximate integer multiple of a lattice constant of the crystal plane of the substrate and the oxide superconductor thin film is Bi