Critical currents of Sm/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7-/spl delta// films grown on various substrates

We observed that a Sm/sub 1/Ba/sub 2/Cu/sub 3/O/sub 7-/spl delta// (SBCO) film grown on a YSZ substrate with arbitrarily oriented crystal was textured in a single crystalline orientation, while there seems to be no noticeable relation between the crystalline orientations of the film and the substrate. The SBCO[103] axis was close to the surface normal axis. On the other hand, we could not grow an YBCO film on the same substrate, which implies the growth of SBCO film is more stable than YBCO film on that substrate. The qualities of SBCO films grown at substrate temperatures across a wide range of 680 /spl deg/C $750 /spl deg/C were similar. The critical current density of this SBCO film was /spl sim/ 3 times smaller than that of SBCO film on a RABiTS-Ni tape, which is several times smaller than that of the YBCO film of coated conductor.