The influence of oxygen variation on Raman scattering and X-ray diffraction from BaCuO2-δ

Masato Kakihana, Lars Börjesson, Sten Eriksson

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We present a Raman scattering and X-ray diffraction study of BaCuO2-δ subject to different heat treatments. A slight decrease in the volume of the unit cell was observed with increasing oxygen deficiency. The Raman spectrum of well oxygenated BaCuO2-δ consists of two main peaks at 580 and 634 cm-1 whose intensities changed dramatically with oxygen removal. It is found that a subsequent oxygen annealing recovered the original Raman feature of BaCuO2-δ. It is stressed that gret care is required in relating Raman modes of high-Tc YBa2Cu3O7-δ samples in the frequency range 550-650 cm-1 to oxygen disorder-induced Raman scattering.

Original languageEnglish
Pages (from-to)1253-1254
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume162-164
Issue numberPART 2
DOIs
Publication statusPublished - 1989 Dec
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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