C. Osthover et al., Influence of oxygen postannealing on the magnetic and electrical properties of La0.67Ca0.33MnO3-delta epitaxial films, MAT SCI E B, 56(2-3), 1998, pp. 164-167
Epitaxial thin films of La0.67Ca0.33MnO3-delta were sputtered in pure oxyge
n on LaAlO3. By in situ postannealing in an oxygen atmosphere T-C and T-MI
are found to be optimized to values of 274 K and 286 K, respectively. These
values are much higher than those obtained for films in the literature. Th
e results show that the magnetic properties strongly depend on the oxygen c
ontent in the films. (C) 1998 Elsevier Science S.A. All rights reserved.