Abstract
We synthesized Pb-doped Bi-Sr-Ca-Cu-O thin films by rf magnetron sputtering. We attempted to reduce Pb concentration to 0.8 the amount of Bi and deposited slightly Cu-rich films. After sintering for only one hour, nearly single-phase high-Tc thin films were synthesized. We studied their magnetic properties. Flux creep was observed to obey logarithmic time decay of magnetization. Pinning po¬tential for flux motion perpendicular to c-axis was estimated to be 0.028 eV at 10 K, which is much smaller than that for 1-2-3 compounds and Bi-layered bulk samples. Flux creep was observed to depend on sintering conditions. Faster heating rate during sintering led to slower flux creep rate.
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© 1990 Springer Japan
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Tanaka, A., Yamanaka, K., Crain, J., Uzumaki, T., Kamehara, N., Niwa, K. (1990). Synthesis and Magnetic Properties of Pb-doped Bi-Sr-Ca-Cu-O Films. In: Ishiguro, T., Kajimura, K. (eds) Advances in Superconductivity II. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68117-5_204
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DOI: https://doi.org/10.1007/978-4-431-68117-5_204
Publisher Name: Springer, Tokyo
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Online ISBN: 978-4-431-68117-5
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