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Accelerated formation of 110 K high Tc phase in the Ca- and Cu-rich Bi-Pb-Sr-Ca-Cu-O system (1990)

Huang, Y. T. ; Liu, R. G. ; Lu, S. W. ; [et al.]

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 56 (1990), S. 779-781

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: The crystal structure and superconducting properties of the Bi-Pb-Sr-Ca-Cu-O system with Ca- and Cu-rich nominal composition were investigated. A nearly single-phased 110 K high Tc superconductor can be obtained with 852 °C/20 h sintering from the starting composition of Bi1.7Pb0.4Sr1.6Ca2.4Cu3.6Oy. X-ray diffraction patterns, resistivity measurement, diamagnetic susceptibility results, and scanning electron micrographs all indicate that the Ca- and Cu-rich nominal composition would result in better superconducting properties than those of Ca:Sr=1:1 Bi-Pb-Sr-Ca-Cu-O compounds in a much shorter sintering time.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.103315

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