J. Phys. IV France 7 (1997) C2-141-C2-142
A1K-XANES Formation in Some Tetrahedral and Octahedral CompoundsL. Bugaev1, A. Sokolenko1, D. Cabaret2, Ph. Ildefonse2 and Ph. Sainctavit2
1 Department of Physics, Rostov University, Zorge str. 5, Rostov-on-Don 344090, Russia
2 LMCP, UA 09, 4 place Jussieu, 75252 Paris cedex 05, France
Experimental and theoretical study of Al K-XANES in AlPO4 (berlinite) and in KAl(S04)212H2O(K-alum) with different types of Al environment is performed. Calculations proved that the experimental XANES are well reproduced within EXAFS-like approach to electron scattering description i.e. considering the single-, double- and triple-scattering processes on two and approximately linear three-atoms chains originated at Al-absorbing atom and consisting mainly of O-atoms chosen under the same for both compounds empirical "selection rule".
© EDP Sciences 1997