X-ray absorption measurements on high-Tc superconductors: Cu-valence and cation-bond-length effects

Y. Jeon, F. Lu, H. Jhans, S. A. Shaheen, G. Liang, M. Croft, P. H. Ansari, K. V. Ramanujachary, E. A. Hayri, S. M. Fine, S. Li, X. H. Feng, M. Greenblatt, L. H. Greene, J. M. Tarascon

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33 Scopus citations

Abstract

We present the results of Cu and Y K-edge and rare-earth and Ba L-edge x-ray absorption measurements on a series of new quaternary high-Tc superconducting compounds La2-xSrxCuO4-y and RBa2Cu3O7 (R=Y,Er,andHo). The Cu K-edge results are shown to reflect the Cu valence state in these materials. The other measurements are discussed in the context of binary rare-earth oxides and the quantitative influence of bond lengths on continuum resonances in such spectra.

Original languageEnglish (US)
Pages (from-to)3891-3894
Number of pages4
JournalPhysical Review B
Volume36
Issue number7
DOIs
StatePublished - 1987
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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