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Figure 5
Decryption of the two-dimensional magnetic SANS cross section dΣM/dΩ in the remanent state (B0 = 0 T) into the individual magnetization Fourier components [|{\widetilde M}_{x}|^{2}], [|{\widetilde M}_{y}|^{2}] and [|{\widetilde M}_{z}|^{2}], and CT = [-({\widetilde M}_{y} {\widetilde M}_{z}^{*} + {\widetilde M}_{y}^{*} {\widetilde M}_{z})] (see insets) (logarithmic colour scale). Note that the respective Fourier components are multiplied by the constant [8\pi^{3} V^{-1} b_{\rm H}^{2}] (in order to have the same units as dΣM/dΩ), but not by the trigonometric functions in the expression for dΣM/dΩ [see equation (13[link])]. The % values specify the fraction of the respective Fourier component of the total dΣM/dΩ [see equation (21[link]) and associated discussion in the main text]. The CT (and hence the corresponding ηα) can take on negative values, but in this figure we show (due to the chosen logarithmic colour scale) the absolute value of the CT. The data correspond to an ensemble of randomly oriented 10 nm-sized nanomagnets. The Ks values for each row are (first row) Ks = 0, (second row) Ks = 5.22 × 10−23 J atom−1, (third row) Ks = 26.1 × 10−23 J atom−1 and (fourth row) Ks = 52.2 × 10−23 J atom−1.

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CRYSTALLOGRAPHY
ISSN: 1600-5767
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