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Figure 10
Grazing-incidence diffraction in the vertical scattering geometry of an in-plane scan (a) and rod scans (b) from a POPOP film grown on a KCl (001) substrate. The characteristic monoclinic splitting of the POPOP Bragg reflections in the scattering rods marked with A* and 2A* is due to the formation of 180° domains in the molecular film, whereas the scattering rod in the special direction B*′ is not split. Needle-like POPOP domains line up with the substrate [110] high-symmetry directions. Reprinted from Smilgies et al. (2000BB28) with permission from Elsevier.

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SYNCHROTRON
RADIATION
ISSN: 1600-5775
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