Photoinduced metastability in YBa2Cu3Ox studied by in situ Raman scattering

M. Osada*, M. Kakihana, J. Bäckström, M. Kall, L. Borjesson, T. Frello, N. H. Andersen, R. Liang, P. Dosanjh, W. N. Hardy

*この研究の対応する著者

研究成果: Article査読

抄録

We study the photoinduced metastable states in oxygen deficient YBa2Cu3Ox (x = 6.35 - 6.87). The states are identified by the intensity dependences of the CuO-chain resonance with 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 mirrors the temperature dependence of chain oxygen ordering observed by hard X-ray diffraction. The stability of the photo-induced state is in line with the reported persistent photo-induced superconductivity effects.

本文言語English
ページ(範囲)681-682
ページ数2
ジャーナルPhysica B: Condensed Matter
284-288
PART I
出版ステータスPublished - 2000
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学

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