XPS study on the preferential site occupations of Bi, Sr and Ca ions in Bi2Sr2CaCu2O8+d superconductors prepared by LPE method

K. Wakamatsu, Y. Oikawa, H. Enomoto, J. S. Shin, Etsuo Uchida, H. Ozaki

    Research output: Contribution to journalArticle

    3 Citations (Scopus)

    Abstract

    XPS measurements were performed on the Bi2Sr2CaCu2O8+d system prepared by the LPE method using melts with compositions Bi:Sr:Ca:Cu = (2 - x) : 2 : (1 + x) : 2 for 0 ≤ x ≤ 0.2. The peak decompositions of Sr3d and Ca2p XPS spectra, together with the EPMA results, elucidated the occupancies of Bi, Sr and Ca atoms on the BiO-, SrO- and Ca-layers. The x dependences of the lattice parameter c and the superconducting critical temperature Tc are explained by the changes of the excess oxygens in the BiO layer.

    Original languageEnglish
    Pages (from-to)687-688
    Number of pages2
    JournalPhysica C: Superconductivity and its Applications
    Volume235-240
    Issue numberPART 1
    DOIs
    Publication statusPublished - 1994

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    occupation
    Superconducting materials
    X ray photoelectron spectroscopy
    Ions
    Electron probe microanalysis
    Lattice constants
    lattice parameters
    critical temperature
    ions
    Oxygen
    Decomposition
    decomposition
    Atoms
    oxygen
    Chemical analysis
    atoms
    Temperature

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    XPS study on the preferential site occupations of Bi, Sr and Ca ions in Bi2Sr2CaCu2O8+d superconductors prepared by LPE method. / Wakamatsu, K.; Oikawa, Y.; Enomoto, H.; Shin, J. S.; Uchida, Etsuo; Ozaki, H.

    In: Physica C: Superconductivity and its Applications, Vol. 235-240, No. PART 1, 1994, p. 687-688.

    Research output: Contribution to journalArticle

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    abstract = "XPS measurements were performed on the Bi2Sr2CaCu2O8+d system prepared by the LPE method using melts with compositions Bi:Sr:Ca:Cu = (2 - x) : 2 : (1 + x) : 2 for 0 ≤ x ≤ 0.2. The peak decompositions of Sr3d and Ca2p XPS spectra, together with the EPMA results, elucidated the occupancies of Bi, Sr and Ca atoms on the BiO-, SrO- and Ca-layers. The x dependences of the lattice parameter c and the superconducting critical temperature Tc are explained by the changes of the excess oxygens in the BiO layer.",
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    AU - Oikawa, Y.

    AU - Enomoto, H.

    AU - Shin, J. S.

    AU - Uchida, Etsuo

    AU - Ozaki, H.

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