XPS studies of several high temperature superconductors: Y-Ba-Cu-O and La-Ba-Cu-O systems

N. T. Liang, K. H. Lii, Y. C. Chou, M. F. Tai, T. T. Chen

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Copper 2P core level X-ray photoelectron spectra on several high Tc superconductors La1.85Ba0.15CuO4, Y1.2Ba0.8CuO4-δ and Y0.4B0.6CuO4-δ oxides have been measured. The results indicate the coexistence of Cu2+ and Cu3+ in these compounds.

Original languageEnglish
Pages (from-to)761-763
Number of pages3
JournalSolid State Communications
Volume64
Issue number5
DOIs
StatePublished - Nov 1987

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