Premium
Distortion of an FeSi Single Crystal and X‐Ray Topographic Contrast Due to a 90° Ferromagnetic Domain Wall
Author(s) -
Polcarová M.,
Gemperlová J.
Publication year - 1969
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.19690320230
Subject(s) - ferromagnetism , distortion (music) , diffraction , materials science , condensed matter physics , x ray , contrast (vision) , lattice (music) , single crystal , crystal (programming language) , plane (geometry) , bragg peak , domain wall (magnetism) , optics , physics , geometry , nuclear magnetic resonance , magnetization , mathematics , magnetic field , quantum mechanics , amplifier , beam (structure) , optoelectronics , cmos , computer science , acoustics , programming language
A crystal lattice distortion due to a plane‐shaped 90° wall between ferromagnetic domains has been found. This distortion is characterized by a matrix Δ P from which the parameter δ(Δθ), corresponding to the variation of the departure from the Bragg condition of the incident X‐ray wave, can easily be calculated for any diffracting plane. The matrix Δ P has been calculated for the (110) and (111) walls, but the calculation can be performed for any magnetically allowed 90° wall. Some qualitative conclusions about the contrast on a 90° wall have been made. The results can be used for further contrast calculations on X‐ray topographs using the dynamical theory of diffraction.