J. Brotz et al., Anisotropic defect structure and transport properties of YBa2Cu3O7-delta films on vicinal SrTiO3(001), J APPL PHYS, 85(1), 1999, pp. 635-637
The microstructure of YBa2Cu3O7-delta thin films grown on vicinal SrTiO3 (0
01) has been studied as a function of the vicinal angle by x-ray diffractio
n using the two-dimensional q-scan technique. Our results reveal a strong c
orrelation between the miscut of a SrTiO3 (001) substrate and the anisotrop
ic defect structure of the film. Furthermore, we observed an anisotropy of
the corresponding critical current density up to 4.6 depending on the angle
of miscut. (C) 1999 American Institute of Physics. [S0021-8979(99)09401-3]
.