INPLANE ANISOTROPIC PROPERTIES OF (103) (013) AND 10-DEGREES YBCO THIN-FILMS/

There is much current interest in fabricating structures including mic robridges and vortex flow devices from high T-c thin films with high i n-plane electrical anisotropy. Two types of film have been studied, fi lms grown on 10 degrees vicinally cut SrTiO3, and (013)/(103) oriented films grown on (110) SrTiO3 subgraphs in a two-temperature growth pro cess, The 10 degrees films have a normal state anisotropy of 3-6 (100K ) dependent on film thickness, The 100nm (013)/(103) films have a norm al state anisotropy of 23 (100K), We report wide ranging I-V measureme nts taken over a range of temperature and applied magnetic fields for both the normal and superconducting states for these films, This data is used to investigate the anisotropy below T-c both in the linear (fl ux-flow) regime and in the non-linear (irreversibility) regime at lowe r temperatures and higher currents.