Change of the in-plane Cu–O bond distribution in La 2CuO 4.1 across T c

Cu K -edge X-ray absorption fine structure (XAFS) on La 2CuO 4.1 has been used to study the radial Cu–O distribution function across the superconducting transition. Fits to the isolated Cu–O XAFS signal show the presence of a non-Gaussian distribution function for temperatures away from the supercon...

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Bibliographic Details
Published inThe Journal of physics and chemistry of solids Vol. 69; no. 9; pp. 2288 - 2291
Main Authors Mustre de León, J., Acosta-Alejandro, M., Conradson, S.D., Bishop, A.R.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2008
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Summary:Cu K -edge X-ray absorption fine structure (XAFS) on La 2CuO 4.1 has been used to study the radial Cu–O distribution function across the superconducting transition. Fits to the isolated Cu–O XAFS signal show the presence of a non-Gaussian distribution function for temperatures away from the superconducting transition temperature. However, this distribution becomes more harmonic in the vicinity of the superconducting transition temperature T c . The results provide evidence for the coupling between the local atomic dynamics and the particles involved in the superconductivity.
ISSN:0022-3697
1879-2553
DOI:10.1016/j.jpcs.2008.04.024