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

CuO-chain Raman scattering and photoinduced metastability in YBa₂Cu₃O_x

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

37 Citations (Scopus)

Abstract

Raman measurements in YBa₂Cu₃O_x (x = 6.72-6.82) high-T_c 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 language	English
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	57
Issue number	22
Publication status	Published - 1998 Jun 1
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics

Cite this

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title = "CuO-chain Raman scattering and photoinduced metastability in YBa2Cu3Ox",

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.",

author = "M. K{\"a}ll and M. Osada and M. Kakihana and L. B{\"o}rjesson and T. Frello and J. Madsen and Andersen, {N. H.} and R. Liang and P. Dosanjh and Hardy, {W. N.}",

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T1 - CuO-chain Raman scattering and photoinduced metastability in YBa2Cu3Ox

AU - Käll, M.

AU - Osada, M.

AU - Kakihana, M.

AU - Börjesson, L.

AU - Frello, T.

AU - Madsen, J.

AU - Andersen, N. H.

AU - Liang, R.

AU - Dosanjh, P.

AU - Hardy, W. N.

PY - 1998/6/1

Y1 - 1998/6/1

N2 - 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.

AB - 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.

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M3 - Article

AN - SCOPUS:0041963717

SN - 0163-1829

VL - 57

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 22

ER -

CuO-chain Raman scattering and photoinduced metastability in YBa₂Cu₃O_x

Abstract

ASJC Scopus subject areas

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