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  • 2000-2004  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    The European physical journal 42 (2004), S. 483-490 
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. The solution deposition of YBa2Cu3O7-δ (Y123) high temperature superconducting thin films was studied. The films were prepared from a polymer-containing precursor onto SrTiO3 (001) and LaAlO3 (001) substrates and mineralized at high temperatures. The process depended on details of the film preparation in a delicate fashion, resulting either in superconducting or non-superconducting thin films. To elucidate this difference in conductivity, scanning electron microscopy and several X-ray diffraction techniques were used to characterize the resulting Y123 layers. Both the morphology of the film and the percentage of non-superconducting minority components are likely to be the origin of the difference in the conductance behavior at low temperatures.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1434-6036
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract. The epitaxial growth of Bi2Sr2CaCu2O x (Bi2212) high temperature superconducting thin films was studied. The films were solution-deposited from a polymer-containing precursor onto SrTiO3 (001) substrates. Bi2212 formed an epitaxial phase with the c-axis parallel to the substrate normal and an in-plane orientation with the a-axis parallel to the SrTiO3 [110] and [ $\bar{1}$ 10] directions. This phase was found to be robust with respect to small changes in stoichiometry, where the appearance of an additional BiSrCuO phase was observed. This minority phase had no major effect on the epitaxial alignment of the Bi2212 phase or the critical temperature of the thin-film sample.
    Type of Medium: Electronic Resource
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