Resonant Raman scattering and photoinduced metastability in oxygen-deficient YBa2Cu3Ox

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

*この研究の対応する著者

研究成果査読

6 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)157-160
ページ数4
ジャーナルPhysica C: Superconductivity and its Applications
338
1
DOI
出版ステータスPublished - 2000 8 1
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学

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