Abstract
High Tc Y1−x Yb x Ba2Cu3O7−y films were prepared on SrTiO3(100) substrates by chemical vapor deposition method. Yb1Ba2Cu3O7−y films were obtained at higher oxygen partial pressure compared with Y1Ba2Cu3O7−y films at the same deposition temperature. Tc,o (R=0) decreased about 1.5 K when Y was fully substituted with Yb. The caxis lattice parameter of Y1−x Yb x Ba2Cu3O7−y films also decreased as the amount of Yb(x) increased.
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Bednorz, J. G. and Muller, K. A., “Possible Hibh Tc Superconductivity in the Ba-La-Cu-O System,”Z. Phys.,B64, 189 (1986).
Chu, C.W., Hor, P. H., Meng, R. L., Gao, L., Huang, Z. J. and Wang, Y. Q., “Evidence for Superconductivity above 40 K in the La-Ba-Cu-O Compound System,”Phys. Rev. Lett.,58(4), 405 (1987).
Endo, T., Yan, H., Hiroaki, N., Masahito, W. and Masahiro, G., “Thin Film Fabrication of Bi2(Sr, Ca)2CuOx Phase at Temperature between 450 and 650 °C by Plasma Assisted Ion Beam Sputtering,”Jpn J. Appl. Phys.,35, 1260 (1996).
Hou, S.Y., Phillips, J. M. and Werder, D. J., “Precipitates in Yba2Cu3-O7-δ thin film annealed at low oxygen partial pressure,”Appl. Phys. Lett.,62(24), 14 (1993).
Kim, Y. S., “A Study on the Formation and Characterization of Y1-x-YbxBa2Cu3O7-y Superconducting Thin Films and Bulk,” MS thesis Chonbuk National University (1994).
Lee, H. G., Park, J. S., Shin, H. S., Kim, C. Y., Kim, C. J. and Won, D. Y., “Pressure Dependence of the Formation of YBaCuO Films by Chemical Vapor Deposition,”Jpn J. Appl. Phys.,30, 1977 (1991).
Lee, H. G., Park, S. D., Yang, S.W., Shin, H. S. and Won, D. Y., “Preparation of YBaCuO Film on a MgO Substrate by Chemical Vapor Deposition at 650 °C,”Jpn J. Appl. Phys.,31, L157 (1992).
Lee, H. G., Kim, Y. S., Park, S. D., Kim, C. J., Hong, G.W., Shin, H. S. and Won, D. Y., “Preparation of Film on Various Substrates by Chemical Vapor Deposition at 650 °C,”Advanced Superconductivity,1, 807 (1993).
Li, Y.Q., Zhao, J., Chern, C. S., Lu, P., Chien, T. R., Gallois, B., Norris, P., Kear, B. and Cosandey, F., “Effects of Y2O3 Precipitates on critical current anisotropy in Yba2Cu3O7-δ thin films prepared by plasma enhanced metalorganic vapor deposition,”Appl. Phys. Lett.,60(19), 11 (1992).
Maeda, H., Tanaka, Y., Fukutomi, M. and Asano, T., “A New High-Tc Oxide Superconductor Without a Rare Earth Element,”Jpn J. Appl. Phys.,27(2), L209 (1988).
Morita, M., Takebayashi, S., Tanaka, M., Kimura, K., Miyamoto, K. and Sawano, K., “Quench and Melt Growth (QMG) Process for Large Bulk Superconductor Fabrication,” Advances in Superconductivity, Springer-Verlag, Tokyo, 733 (1990).
Putulin, S.N., Antipov, E.V., Chmaissen, O. and Merezio, “Superconductivity at 94K in HgBa2CuO4+ δ,”Nature,362, 226 (1993).
Sheng, Z. Z., Herman, A.M. and Ali, A. E., “Bulk Superconductivity at 120 K in the Tl-Ba-Cu-O System,”Nature,332, 138 (1988).
Watanabe, K., Yamane, H., Kurosawa, H., Hirai, T., Kobayashi, N., Iwasaki, H., Noto, K. and Muto, Y., “Crictical current at 77.3 K under magnetic fields up to 27T for an Y-Ba-Cu-O film prepared by chemical vapor deposition,”Appl. Phys. Lett.,54(6), 575 (1989).
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Kim, YS., Park, HH., Kim, YS. et al. Preparation of Y1−x Yb x Ba2Cu3O7−y superconducting films by chemical vapor deposition. Korean J. Chem. Eng. 17, 473–476 (2000). https://doi.org/10.1007/BF02706863
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DOI: https://doi.org/10.1007/BF02706863