Zn- or Ca-substitution effects on Raman scattering in NdBa2Cu3O7

N. Watanabe, I. Kato, T. Machi, S. Shibata, N. Koshizuka, M. Murakami

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The polarized Raman spectra of Zn or Ca doped NdBa2Cu3O7-δ single crystals have been investigated. It was found that the linewidth of Ba mode in Zn doped Nd 1:2:3 is broader than those in pure Nd 1:2:3. This result suggests that the Nd substitution on Ba sites occurred in Zn doped Nd 1:2:3. In x(zz)x̄ geometry the relative intensity of the O(4) mode in Zn doped Nd 1:2:3 is smaller than those in pure or Ca doped Nd 1:2:3. The difference between Zn doped and Ca doped Nd 1:2:3 in the relative intensity of the O(4) mode may be produced by the disordering in the CuO2 plane.

Original languageEnglish
Pages (from-to)337-340
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume378-381
Issue numberPART 1
DOIs
Publication statusPublished - 2002 Oct 1
Externally publishedYes

Keywords

  • NdBaCuO
  • Peak effect
  • Phonon spectrum
  • Raman scattering
  • Substitution effects

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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