Precise determination of anomalous scattering factors of Ge by using X-ray resonant scattering

A method for the determination of the anomalous scattering factor very near an absorption edge is proposed based on the fact that phase change of the real part of the atomic scattering factor is large and affects the peak position of the rocking curve. As an example, the anomalous scattering factor of Ge is determined with accuracy better than 1%.

Measurement of X-ray rocking curves in the Bragg-Laue case

X-ray rocking curves in the Bragg-Laue case have been measured using a high-resolution optical system. Calculations using Wagner's approach based on Laue's dynamical theory reproduced the rocking curves observed in the experiment.

Observation of rocking curves in Bragg-Laue case

Interference fringe in Bragg-(Bragg)^m-Laue case

Observation of in-phase interference fringes

Anomalously large dispersion angle of refracted wave in Bragg case