Petukhov A V, Dolbnya I P, Aarts D G A L, Vroege G J, Lekkerkerker H N W
van 't Hoff Laboratory for Physical and Colloid Chemistry, Debye Institute, University of Utrecht, Padualaan 8, 3508 TB Utrecht, The Netherlands.
Phys Rev Lett. 2003 Jan 17;90(2):028304. doi: 10.1103/PhysRevLett.90.028304.
Synchrotron small-angle x-ray diffraction images of random-stacking-induced Bragg scattering rods are obtained in a wide range of wave vectors from a single colloidal crystal. The results reveal a strong multiple scattering effect, which leads to new features in the diffraction pattern-secondary Bragg rods. We argue that dynamic x-ray diffraction is rather common for high-quality colloidal photonic crystals and should be taken into account.
从单个胶体晶体中,在很宽的波矢范围内获得了随机堆积诱导的布拉格散射棒的同步加速器小角X射线衍射图像。结果揭示了一种强烈的多重散射效应,这导致了衍射图案中的新特征——次级布拉格棒。我们认为,动态X射线衍射对于高质量的胶体光子晶体相当普遍,应该予以考虑。