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; E. Uchida; H. Ozaki

doi:10.1016/0921-4534(94)91567-9

XPS study on the preferential site occupations of Bi, Sr and Ca ions in Bi₂Sr₂CaCu₂O_8+d superconductors prepared by LPE method

K. Wakamatsu^*, Y. Oikawa, H. Enomoto, J. S. Shin, E. Uchida, H. Ozaki

^*Corresponding author for this work

School of Creative Science and Engineering

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4 Citations (Scopus)

Abstract

XPS measurements were performed on the Bi₂Sr₂CaCu₂O_8+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 T_c are explained by the changes of the excess oxygens in the BiO layer.

Original language	English
Pages (from-to)	687-688
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	235-240
Issue number	PART 1
DOIs	https://doi.org/10.1016/0921-4534(94)91567-9
Publication status	Published - 1994 Dec

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

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.",

author = "K. Wakamatsu and Y. Oikawa and H. Enomoto and Shin, {J. S.} and E. Uchida and H. Ozaki",

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T1 - XPS study on the preferential site occupations of Bi, Sr and Ca ions in Bi2Sr2CaCu2O8+d superconductors prepared by LPE method

AU - Wakamatsu, K.

AU - Oikawa, Y.

AU - Enomoto, H.

AU - Shin, J. S.

AU - Uchida, E.

AU - Ozaki, H.

PY - 1994/12

Y1 - 1994/12

N2 - 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.

AB - 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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XPS study on the preferential site occupations of Bi, Sr and Ca ions in Bi₂Sr₂CaCu₂O_8+d superconductors prepared by LPE method

Abstract

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