Disappearance of correlations in the atom motion upon hydrogen intercalation into ReO3 lattice

16th International Conference on X-ray Absorption Fine Structure

Timoshenko, Janis^1 ; Kuzmin, Alexei^1 ; Purans, Juris^1

Institute of Solid State Physics, University of Latvia, Kengaraga street 8, Riga

LV-1063, Latvia^1

关键词: Atom motion;    Coordination shells;    Exafs analysis;    Hydrogen intercalation;    Local structure;    Rhenium trioxide;    Thermal motion;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/712/1/012003/pdf
DOI  :  10.1088/1742-6596/712/1/012003

来源: IOP

【 摘 要 】

The influence of hydrogen intercalation on the local structure of rhenium trioxide is studied in-situ by the Re L3-edge EXAFS spectroscopy and analysed using a novel approach, based on the use of evolutionary algorithm and wavelet transform. The proposed method allows us to perform accurate EXAFS analysis within the multiple-scattering approach taking into account contributions from outer coordination shells and to access the information on correlations in atomic thermal motion.