PRODUCTION OF THIN SUPERCONDUCTING OXIDE FILM HAVING HIGH DEGREE OF ORIENTATION

摘要

PURPOSE:To enhance the orientability of the crystals of a thin superconducting oxide film and to make it possible to allow electric current to flow in the surface of the film at high critical current density by growing the film on a substrate while impressing a magnetic field in a direction perpendicular to the surface of the substrate. CONSTITUTION:A thin superconducting oxide film is grown on a substrate by a vapor growth method while impressing a magnetic field at 0.5-50 T magnetic flux density in a direction perpendicular to the surface of the substrate. Network layers in which Cu and O in each unit cell bond closely and two- dimensionally are arranged parallel to the surface of the substrate.