Reverse Monte Carlo studies of CeO₂ using neutron and synchrotron radiation techniques

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. (paper)