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Composition dependence of superconducting properties in Bi2(Sr1−xCax)n+1CunOy (n=2, 3) thin films (1988)

Satoh, T. ; Yoshitake, T. ; Kubo, Y. ; [et al.]

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 53 (1988), S. 1213-1215

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ISSN: 1077-3118

Source: AIP Digital Archive

Topics: Physics

Notes: Thin films of the Bi2(Sr1−xCax)n+1CunOy (n=2, 3) system were prepared on (100)MgO substrates by coevaporation of Bi2O3, Sr-Ca alloy, and Cu metal. The lattice constant of the c axis of the low Tc (∼85 K) phase (n=2) decreased with increasing Ca composition x. The superconducting transition temperatures of both the low Tc phase and high Tc (∼110 K) phase (n=3) decreased with increasing x. These tendencies indicated that both the low Tc phase and the high Tc phase have a mutual solubility between Ca and Sr atoms in this Bi system and that the Tc 's of these two phases are related to the c-axis lattice constant.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.100668

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