Title :
ab-orientation YBa/sub 2/Cu/sub 3/O/sub 7/ films grown on MgO substrates with a c-axis layer buffer by RF-sputtering method
Author :
Wu, S. ; Ng, K.-W.
Author_Institution :
Dept. of Phys. & Astron., Kentucky Univ., Lexington, KY, USA
fDate :
3/1/1993 12:00:00 AM
Abstract :
An ab-plane-oriented YBa/sub 2/Cu/sub 3/O/sub 7/ thin film has been deposited on a thin c-axis layer with MgO as substrate by RF sputtering. Superconducting transition is much better than that deposited directly on the MgO substrate. The differences have been investigated by X-ray diffraction, reflection high energy electron diffraction, and scanning electron microscopy. The same technique has been applied to yttrium stabilized zirconia and yielded similar results.<>
Keywords :
X-ray diffraction examination of materials; barium compounds; high-temperature superconductors; reflection high energy electron diffraction; scanning electron microscope examination of materials; sputter deposition; superconducting thin films; superconducting transition temperature; yttrium compounds; MgO substrate; RF-sputtering; RHEED; SEM; X-ray diffraction; YBa/sub 2/Cu/sub 3/O/sub 7/ films; ab-plane-oriented; c-axis layer buffer; high temperature superconductors; superconducting transition; Amorphous materials; Electrons; Optical films; Semiconductor films; Sputtering; Substrates; Superconducting films; Surface morphology; Temperature distribution; X-ray diffraction;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
