ANGULAR-DEPENDENCE OF THE ARTIFICIALLY INDUCED ANISOTROPY IN ALPHA-AXIS-ORIENTED EUBA2CU3O7 PRBA2CU3O7 SUPERCONDUCTING SUPERLATTICES/

a-axis-oriented EuBa2Cu3O7/PrBa2Cu3O7 (EBCO/PBCO) superlattices allow us to separate contributions to the anisotropy coming from the natural layered structure of EBCO from that introduced by the artificial laye ring with PBCO. The angular dependence of the critical current and res istivity in a magnetic field has been studied with different superlatt ice modulation lengths (strong coupling regime). The increase in the i nsulating PBCO layer thickness produces a crossover from an a-axis-ori ented three-dimensional (3D) superconductor with a distribution of pla nar pinning centers to a 3D superconductor with an angular anisotropy behavior similar to single-phase c-axis-oriented films.