Oxygen defect in YBa2Cu3Ox: An x-ray photoemission approach

W. K. Ford, C. T. Chen, J. Anderson, J. Kwo, S. H. Liou, M. Hong, G. V. Rubenacker, J. E. Drumheller

Research output: Contribution to journalArticle

48 Scopus citations

Abstract

A combined x-ray photoemission and diamagnetic-susceptibility study of YBa2Cu3Ox with x6 and 7 has been performed, with emphasis on the oxygen defect and the effect of heating in vacuum. By comparing spectra taken at these two oxygen contents, the core levels observed in the O 1s and Ba 4d spectral range are identified. Peak-intensity analysis indicates (1) that the oxygen released during the in situ heating is derived from or near the Cu-O-Cu-O chains of YBa2Cu3O7 and (2) that there is a random distribution of oxygen defects in or near these chains leading to two chemically dissimilar barium atoms even in single-orthorhombic-phase samples.

Original languageEnglish (US)
Pages (from-to)7924-7927
Number of pages4
JournalPhysical Review B
Volume37
Issue number13
DOIs
StatePublished - 1988

ASJC Scopus subject areas

  • Condensed Matter Physics

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    Ford, W. K., Chen, C. T., Anderson, J., Kwo, J., Liou, S. H., Hong, M., Rubenacker, G. V., & Drumheller, J. E. (1988). Oxygen defect in YBa2Cu3Ox: An x-ray photoemission approach. Physical Review B, 37(13), 7924-7927. https://doi.org/10.1103/PhysRevB.37.7924