Title :
Critical currents of Sm1Ba2Cu3O7-δ films grown on various substrates
Author :
Chung, K. ; Kim, H. ; Lee, B. ; Lim, S. ; Choi, S. ; Oh, S. ; Youm, D.
Author_Institution :
Dept. of Phys., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea
fDate :
6/1/2003 12:00:00 AM
Abstract :
We observed that a Sm1Ba2Cu3O7-δ (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 °C $750 °C were similar. The critical current density of this SBCO film was ∼ 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.
Keywords :
barium compounds; critical current density (superconductivity); high-temperature superconductors; samarium compounds; superconducting thin films; 680 to 750 degC; HTSC; RABiTS-Ni tape; Sm1Ba2Cu3O7-δ; Sm1Ba2Cu3O7-δ films; Y2O3-ZrO2; YSZ substrate; arbitrarily oriented crystal; critical current density; critical currents; single crystalline orientation; substrate temperatures; Conducting materials; Conductive films; Crystallization; Materials science and technology; Samarium; Substrates; Superconducting epitaxial layers; Superconducting films; Superconducting materials; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.811960
