Raman spectra of YBa2Cu3Ox superconductors with different oxygen content

D. Kirillov, J. P. Collman, J. T. McDevitt, G. T. Yee, M. J. Holcomb, I. Bozovic

Research output: Contribution to journalArticlepeer-review


The Raman spectra of high-purity samples of YBa2Cu3Ox were studied as a function of oxygen content 6<x<7. The most important changes occurred in the spectral range corresponding to the stretching vibrations of Cu-O bonds. At the transition from the superconducting orthorhombic to the semiconducting tetragonal phase, x=6.5, the intensity of the highest-frequency mode at 632 cm-1 drops drastically as oxygen is removed from the Cu(1)-O(1) chains. The two Raman modes at 440 and 500 cm-1 merge into a single mode at 472 cm-1. The correlation between the phase transition and changes in the spectra is discussed.

Original languageEnglish (US)
Pages (from-to)3660-3663
Number of pages4
JournalPhysical Review B
Issue number7
StatePublished - 1988

ASJC Scopus subject areas

  • Condensed Matter Physics


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