Reverse Monte Carlo studies of CeO2 using neutron and synchrotron radiation techniques. (31st January 2017)

• Record Type: Journal Article
• Authors: Clark, Adam H; Marchbank, Huw R; Hyde, Timothy I; Playford, Helen Y; Tucker, Matthew G; Sankar, Gopinathan
• Is Part Of: Physica scripta. Volume 92:Number 3(2017:Mar.)
• Publication Date: 2017-01-31
• Subjects: reverse Monte Carlo -- ceria -- neutron total scattering -- EXAFS; Physics -- Periodicals; 530.05
• DOI: 10.1088/1402-4896/aa547f
• Languages: English
• ISSNs: 0031-8949

Abstract

Abstract: A reverse Monte Carlo analysis method was employed to extract the structure of CeO2 from Neutron total scattering (comprising both neutron diffraction (ND) and pair-distribution functions (PDF) and Ce L3 - and K-edge EXAFS data. Here it is shown that there is a noticeable difference between using short ranged x-ray absorption spectroscopy data and using medium-long range PDF and ND data in regards to the disorder of the cerium atoms. This illustrates the importance of considering multiple length scales and radiation sources.