Heat-treatment effects on the Raman scattering spectra of NdBa 2Cu3O7-δ

N. Watanabe, R. Hareyama, T. Machi, S. Arai, N. Koshizuka, Masato Murakami

Research output: Contribution to journalArticle

Abstract

The polarized Raman spectra of NdBa2Cu3O 7-δ single crystals heated at ∼900 °C under various oxygen partial pressures (PO2) have been investigated. It was found that the linewidth of Ba mode sharpens and the relative intensity of this mode is enhanced with increasing PO2. These observations show that such a high-temperature heat-treatment changes the distribution of Nd-rich 123 clusters.

Original languageEnglish
Pages (from-to)175-180
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Volume392-396
Issue numberPART 1
DOIs
Publication statusPublished - 2003 Oct
Externally publishedYes

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Linewidth
Partial pressure
Raman scattering
heat treatment
Heat treatment
Single crystals
Raman spectra
Oxygen
partial pressure
Temperature
single crystals
oxygen

Keywords

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

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Heat-treatment effects on the Raman scattering spectra of NdBa 2Cu3O7-δ. / Watanabe, N.; Hareyama, R.; Machi, T.; Arai, S.; Koshizuka, N.; Murakami, Masato.

In: Physica C: Superconductivity and its Applications, Vol. 392-396, No. PART 1, 10.2003, p. 175-180.

Research output: Contribution to journalArticle

Watanabe, N. ; Hareyama, R. ; Machi, T. ; Arai, S. ; Koshizuka, N. ; Murakami, Masato. / Heat-treatment effects on the Raman scattering spectra of NdBa 2Cu3O7-δ. In: Physica C: Superconductivity and its Applications. 2003 ; Vol. 392-396, No. PART 1. pp. 175-180.
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