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Figure 6
(a) A simplified sketch of the spin-misalignment correlations around defects in an antiferromagnetic matrix. The jump in the magnetization magnitude at the interface between the precipitate and the matrix gives rise to a dipolar stray field (drawn here with spherical symmetry for simplicity), which itself exerts a torque on the matrix spins and in this way produces spin disorder and a concomitant field-dependent contrast for magnetic SANS. R denotes the average distance between defects. Coloured arrows represent the magnetization component [{\bf M}_ \bot] perpendicular to H0. (b), (c) Illustrations of the magnetization distribution around defects for the cases of lH ≫ R (low field) and lH << R (large field), respectively. Adapted from Kronmüller & Seeger (1961BB18).

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 55| Part 4| August 2022| Pages 713-721
https://doi.org/10.1107/S1600576722006355
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