Photoinduced effects and oxygen dynamics in YBa2Cu3Ox

M. Osada, M. Kakihana, M. Käll, J. Bäckström, L. Börjesson, N. H. Andersen

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Oxygen-deficient YBa2Cu3Ox (Y123) exhibits persistent photoconductivity when illuminated by visible light. We have investigated resonant Raman spectra as a function of excitation wavelength and temperature, which shed new light on photoinduced effects and chain oxygen dynamics in Y123. Experimental evidence suggests that the mechanism behind the unusual photoinduced effects primary involves photoinduced oxygen ordering. Our Raman data also constitute the non-diffraction observations of the superstructure phase transition in Y123.

Original languageEnglish
Pages (from-to)545-548
Number of pages4
JournalPhysica C: Superconductivity and its Applications
Volume364-365
DOIs
Publication statusPublished - 2001 Nov
Externally publishedYes

Keywords

  • Persistent photoconductivity
  • Photoinduced metastability
  • Resonant Raman scattering
  • YBaCuO

ASJC Scopus subject areas

  • Condensed Matter Physics

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    Osada, M., Kakihana, M., Käll, M., Bäckström, J., Börjesson, L., & Andersen, N. H. (2001). Photoinduced effects and oxygen dynamics in YBa2Cu3Ox. Physica C: Superconductivity and its Applications, 364-365, 545-548. https://doi.org/10.1016/S0921-4534(01)00848-6