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Amplitude of the angular scatter produced by thermal fluctuations as a function of the ratio of magnetic energy mH to elastic rigidity K for various values of K. Solid lines, Δψ(θ0 = 180°), i.e. angular scatter about the equilibrium position when the field is antiparallel to the rest orientation of the magnet, calculated according to equation (D 3b). Dashed lines, angular scatter Δψ(θ0 = 0) for the parallel orientation (equation (D 3a)).
