Resonant Raman scattering and photoinduced metastability in oxygen-deficient YBa2Cu3Ox

M. Osada, M. Kakihana, J. Bäckström, M. Käll, L. Börjesson

Research output: Contribution to journalConference article

6 Citations (Scopus)

Abstract

We studied the photoinduced metastable states in oxygen-deficient YBa2Cu3Ox (Y123) (x = 6.35-6.87). The states are identified by the intensity dependences of CuO-chain resonance on photo irradiation and temperature. Below room temperature (RT) the CuO-chain resonance can be completely suppressed by irradiation with visible light polarized along the CuO chains, indicating photo-assisted oxygen ordering. Above RT, the resonance intensity returns and saturates at T > 100°C. This behavior exactly reflects the temperature dependence of chain oxygen ordering in the same crystals observed by hard X-ray diffraction. The stability of the photo-induced state is in agreement with reported persistent photo-induced superconductivity effects.

Original languageEnglish
Pages (from-to)157-160
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume338
Issue number1
DOIs
Publication statusPublished - 2000 Aug 1
Externally publishedYes
EventInternational Discussion Meeting on Chemistry Approaches to High-Tc Superconductive Materials / 5th International Workshop on Chemical Designing and Processing of High-Tc Superconductors (Chem-HTSC-V) - Yokohama, Jpn
Duration: 1999 Oct 151999 Oct 16

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Resonant Raman scattering and photoinduced metastability in oxygen-deficient YBa<sub>2</sub>Cu<sub>3</sub>O<sub>x</sub>'. Together they form a unique fingerprint.

  • Cite this