Structure and bonding of Bi-Sr-Ca-Cu-O crystal by x-ray photoelectron spectroscopy

Journal Article · Tue Nov 01 04:00:00 EST 1988 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.38.8868· OSTI ID:7016213

Kohiki, S; Wada, T; Kawashima, S; Takagi, H; Uchida, S; Tanaka, S

X-ray photoelectron spectroscopy was performed on high-T/sub c/ superconducting Bi-Sr-Ca-Cu-O single crystals with T/sub c/approx.80 K. The core-level electron spectra of Sr, Ca and Bi show the possibility of exchanging their lattice sites in the crystal. On the other hand, the core-level electron spectrum of Cu indicates a unique lattice site in the crystal. These features are consistent with the structure model for the crystal with formula unit Bi/sub 2/(Sr,Ca)/sub 3/Cu/sub 2/O/sub y/. We can readily determine the distribution of Sr, Ca and Bi in the cation sites by x-ray photoelectron spectroscopy in contrast to x-ray diffraction and high-resolution transmission electron microscopy.

• Research Organization: Central Research Laboratory, Matsushita Electric Industries, Moriguchi, Osaka 570, Japan
• OSTI ID: 7016213
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 38:13; ISSN PRBMD
• Country of Publication: United States
• Language: English

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