Phase shift functions in rare‐earth ternary compounds

Abstract

The empirical phase shifts in the extended X-ray absorption fine structure (EXAFS) are calculated in a series of rare-earth based ternary compounds. The phase shifts are compared with the experimental phase shifts obtained from the measured EXAFS data in these systems. The dependence of the phase shift function on the atomic number of the back scattering atom is critically examined.Fiir eine Reihe von terniiren Selten-Erd-Verbindungen werden die empirischen Phasenverschiebungen der ausgedehnten Rontgenabsorptions-Feinstruktur (EXAFS) berechnet. Die Phasenverschiebungen werden mit den gemessenen EXAFS-Daten dieser Systeme verglichen. Die Abhangigkeit der Phasenverschiebungsfunktion von der Atomzahl des Riickstreuatoms wird kritisch untcrsucht.

Correlation of Nearest Neighbour Distance and Bonding Parameters of Exafs of Some Mn and Co Systems

“…By plotting n versus k curve for the maxima and the minima of the measured EXAFS [4][5][6], the value of R1 -α1 in Eq. (3) can be obtained from the slope of n versus k curve.…”