Abstract
High-resolution x-ray absorption near-edge structures at At Kedge were collected on a series of garnets, pyrope (Mg 3 Al 2 Si 3 O 12 ), almandine (Fe 3 Al 2 Si 3 O 12 ), spessartine (Mn 3 Al 2 Si 3 O 12 ), and grossular (Ca 3 Al 2 Si 3 O 12 ), using a YB 66 crystal monochromator. Full multiple scattering (MS) calculations by using cluster models and different exchange-correlation potentials were compared with experimental data. An overall good agreement was obtained in the energy range up to 60 eV above the threshold and a clear evidence on the effect of atoms located far away from the first-coordination shell around the photoabsorber was obtained. Moreover the pre-edge feature can be explained in terms of the empty d bands of next nearest neighbors.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
