Preparation of the bulk superconductor Tl2Ba2Ca3Cu4O12

M. Kikuchi, S. Nakajima, Y. Syono, K. Hiraga, T. Oku, D. Shindo, N. Kobayashi, H. Iwasaki, Y. Muto

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    44 Citations (Scopus)

    Abstract

    The bulk superconductor Tl2Ba2Ca3Cu4O12 with Tc (onset) above 112 K has been prepared and structure and chemical composition were examined by X-ray powder diffraction, analytical (EDX) and high resolution electron microscopy. Unit cell dimensions for the tetragonal cell determined by the least squares method are a = 3.853 (1) A ̊, c=41.98 (3) Å. The transition temperature, Tc, of the double layered Tl system increases with the number of Cu-O layers (n) up to n = 3, while it turns down at n = 4.

    Original languageEnglish
    Pages (from-to)79-82
    Number of pages4
    JournalPhysica C: Superconductivity and its applications
    Volume158
    Issue number1-2
    DOIs
    Publication statusPublished - 1989 Apr 1

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics
    • Energy Engineering and Power Technology
    • Electrical and Electronic Engineering

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