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Distortion Correction in Anomalous Absorption Coefficients
Author(s) -
Kubiyama M.
Publication year - 1967
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19670240236
Subject(s) - distortion (music) , debye–waller factor , bragg's law , absorption (acoustics) , attenuation coefficient , reflection (computer programming) , diffraction , crystal (programming language) , debye , displacement (psychology) , physics , thermal expansion , optics , structure factor , chemistry , atomic physics , condensed matter physics , thermodynamics , psychology , amplifier , optoelectronics , cmos , computer science , psychotherapist , programming language
Based on a recent theory of X‐ray diffraction by a distorted crystal completed by the present author, the temperature and distortion corrections in anomalous absorption coefficients have been studied in the case of a single symmetric Bragg reflection in transmission (symmetrical Laue case). If the distribution of atomic displacements is given, then the anomalous absorption coefficient has a distortion correction of the same form as the Debye‐Waller factor in terms of the second moment of the distribution. If the displacement of atoms in a distorted crystal is replaced by a proper time‐average value of the thermal motion of atoms, then the temperature correction in the absorption coefficient is given by the Debye‐Waller factor multiplied by the structure factor.