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The defect structure of the high-T c superconductors in the system Bi-Ca-Sr-Cu-O

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Abstract

Electron-diffraction patterns and high-resolution images show that the high-T c compounds in the system Bi-Ca-Sr-Cu-O exhibit incommensurately modulated superstructures of an Aurivillius-like basic structure. The modulation occurs in different symmetry related directions, giving rise to a number of superstructure variants and to different types of interfaces. No structural phase transitions are found in the temperature range from 20 K to the melting point.

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Work performed in the framework of The Institute for Materials Science, I.M.S. (Antwerp) with financial support of I.U.A.P.

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Van Tendeloo, G., Zandbergen, H.W., Van Landuyt, J. et al. The defect structure of the high-T c superconductors in the system Bi-Ca-Sr-Cu-O. Appl. Phys. A 46, 153–158 (1988). https://doi.org/10.1007/BF00615924

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  • DOI: https://doi.org/10.1007/BF00615924

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