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Measured intensity profiles (circles) along lines of constant q x marked by the dashed lines in Fig. 3 ▸ and the respective fits (lines) for samples (a) A and (b) B. The measured intensity is fitted to the sum of two Gaussians, a narrow one representing the scattering from the NWs and a broader one due to scattering from the rough substrate. The background is assumed to depend linearly on q z .
