| Numéro |
J. Phys. Colloques
Volume 47, Numéro C8, Décembre 1986
EXAFS and Near Edge Structure IV
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|---|---|---|
| Page(s) | C8-845 - C8-848 | |
| DOI | https://doi.org/10.1051/jphyscol:19868162 | |
EXAFS and Near Edge Structure IV
J. Phys. Colloques 47 (1986) C8-845-C8-848
DOI: 10.1051/jphyscol:19868162
1 Center for Materials Research, 105 McCullough Building, Stanford University, Stanford, CA 94305-4045, U.S.A.
2 Department of Earth and Space Sciences, University of California at Los Angeles (UCLA), 405 Hilgard Avenue, Los Angeles, CA 90024, U.S.A.
J. Phys. Colloques 47 (1986) C8-845-C8-848
DOI: 10.1051/jphyscol:19868162
DETERMINATION OF SHORT RANGE ORDER (SRO) PARAMETERS FROM EXAFS PAIR DISTRIBUTION FUNCTIONS OF OXIDE AND SILICATE SOLID SOLUTIONS
G.A. WAYCHUNAS1, W.A. DOLLASE2 et C.R. ROSS21 Center for Materials Research, 105 McCullough Building, Stanford University, Stanford, CA 94305-4045, U.S.A.
2 Department of Earth and Space Sciences, University of California at Los Angeles (UCLA), 405 Hilgard Avenue, Los Angeles, CA 90024, U.S.A.
Abstract
Short Range Order (SRO) in certain solid solutions can be measured directly from observed EXAFS structure function peak areas. Results for MgO-FeO, MgO-LiFeO2, and CaMgSi2O6-CaFe2+Si2O6 solutions indicate that these are almost completely disordered at their synthesis temperatures. The necessity of structural modeling to obtain interatomic distances for varying compositions and degree of ordering is emphasized.