Abstract
Curved-wave-multiple-scattering cluster calculations with the FEFF6 code were used to interpret experimental
AlK-edge near-edge X-ray absorption fine structure (NEXAFS) spectra of various minerals and Y zeolites
for energies 15 eV above threshold. Octahedral, tetrahedral, and square planar geometries of Al can be
easily distinguished from each other utilizing characteristic features in the NEXAFS
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