CuO-chain Raman scattering and photoinduced metastability in YBa2Cu3Ox

M. Käll, M. Osada, M. Kakihana, L. Börjesson, T. Frello, J. Madsen, N. H. Andersen, R. Liang, P. Dosanjh, W. N. Hardy

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Raman measurements in YBa2Cu3Ox (x = 6.72-6.82) high-Tc superconductors reveal intense phonon scattering due to an electronic resonance localized near oxygen vacancies on the CuO chains. Below room temperature the resonance can be photobleached in a manner similar to reported persistent photoinduced superconductivity effects, indicating photon-assisted oxygen ordering or electron vacancy capture. By comparing Raman and x-ray diffraction data we establish a correlation between the stability of the photoinduced state and the oxygen-ordering kinetics in the CuO chains.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume57
Issue number22
Publication statusPublished - 1998 Jun 1
Externally publishedYes

Fingerprint

metastable state
Raman scattering
Raman spectra
Oxygen
Phonon scattering
oxygen
Oxygen vacancies
Superconductivity
Superconducting materials
Vacancies
Photons
Diffraction
X rays
Kinetics
Electrons
x ray diffraction
superconductivity
kinetics
photons
room temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Käll, M., Osada, M., Kakihana, M., Börjesson, L., Frello, T., Madsen, J., ... Hardy, W. N. (1998). CuO-chain Raman scattering and photoinduced metastability in YBa2Cu3Ox. Physical Review B - Condensed Matter and Materials Physics, 57(22).

CuO-chain Raman scattering and photoinduced metastability in YBa2Cu3Ox. / Käll, M.; Osada, M.; Kakihana, M.; Börjesson, L.; Frello, T.; Madsen, J.; Andersen, N. H.; Liang, R.; Dosanjh, P.; Hardy, W. N.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 57, No. 22, 01.06.1998.

Research output: Contribution to journalArticle

Käll, M, Osada, M, Kakihana, M, Börjesson, L, Frello, T, Madsen, J, Andersen, NH, Liang, R, Dosanjh, P & Hardy, WN 1998, 'CuO-chain Raman scattering and photoinduced metastability in YBa2Cu3Ox', Physical Review B - Condensed Matter and Materials Physics, vol. 57, no. 22.
Käll M, Osada M, Kakihana M, Börjesson L, Frello T, Madsen J et al. CuO-chain Raman scattering and photoinduced metastability in YBa2Cu3Ox. Physical Review B - Condensed Matter and Materials Physics. 1998 Jun 1;57(22).
Käll, M. ; Osada, M. ; Kakihana, M. ; Börjesson, L. ; Frello, T. ; Madsen, J. ; Andersen, N. H. ; Liang, R. ; Dosanjh, P. ; Hardy, W. N. / CuO-chain Raman scattering and photoinduced metastability in YBa2Cu3Ox. In: Physical Review B - Condensed Matter and Materials Physics. 1998 ; Vol. 57, No. 22.
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AU - Frello, T.

AU - Madsen, J.

AU - Andersen, N. H.

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AU - Dosanjh, P.

AU - Hardy, W. N.

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