A NEW METHOD FOR PARAMETERIZATION OF PHASE-SHIFT AND BACKSCATTERING AMPLITUDE

Authors
VAARKAMP M LINDERS JC KONINGSBERGER DC
Citation
M. Vaarkamp et al., A NEW METHOD FOR PARAMETERIZATION OF PHASE-SHIFT AND BACKSCATTERING AMPLITUDE, Physica. B, Condensed matter, 209(1-4), 1995, pp. 159-160
Citations number
5
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
209
Issue
1-4
Year of publication
1995
Pages
159 - 160
Database
ISI
SICI code
0921-4526(1995)209:1-4<159:ANMFPO>2.0.ZU;2-K
Abstract
Parameterization of phase and backscattering amplitude with cubic spli nes is described. Using these cubic spline, the analytical partial der ivatives of the plane wave EXAFS function can be calculated. The use o f analytical partial derivatives decreases the CPU time needed for a r efinement by over 60% for a three shell system compared to a refinemen t with partial derivatives calculated with the finite difference metho d.