N. Sparvieri et al., GROWTH AND MAGNETIC CHARACTERIZATION OF YBCO FILMS, Nuovo cimento della Societa italiana di fisica. D, Condensed matter,atomic, molecular and chemical physics, biophysics, 16(12), 1994, pp. 1987-1991
Epitaxial films of YBa2 Cu-3 O-7-x were deposited in situ on LaAlO3 su
bstrates using single-target 90 degrees off-axis sputtering. The films
were characterized by magnetization measurements (M vs. T, I-T), appl
ying the field parallel to c-axis. The observed differences in the T-c
and J(c) values are attributed to the different oxygen content in the
superconducting films.