Grain Boundaries in YBa2Cu3O7−x

Abstract

ABSTRACTGrain boundaries in YBa2Cu3O7−x. thin films deposited on yttria-stabilized cubic zirconia have been characterized using selected-area diffraction. In addition to twin boundaries, several types of low-angle and high-angle grain boundaries are frequently found in these films. The high-angle boundaries include 23.5°, 29°, and 45° rotations about [001] and 90° rotations about [100] or [010]. These boundaries are compared to special high-angle grain boundaries in cubic materials.