ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Superconducting Ba2 YCu3 O7−x thin films were prepared by chemical vapor deposition using β-diketonate chelates on SrTiO3 single crystalline substrates, metal substrates, and metal substrates with a polycrystalline SrTiO3 buffer. The temperatures of complete superconducting transitions were observed at 89, 81, and 84 K, respectively. Reduced critical current density of the film on a single crystalline substrate in magnetic fields up to 600 mT at 77 K remained one or two orders of magnitude higher than that of powder metallurgical processed specimens. According to x-ray diffraction patterns, the existence of a well-oriented orthorhombic Ba2 YCu3 O7−x structure has been confirmed in all specimens.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.102311
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