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Figure 4
Rocking-curve topographs of plate B obtained from the as-grown (111) surface: (a) map of the curve width (FWHM) and (b) map of the curve peak position (midpoint). The dashed box of size ∼3 mm × 7 mm indicates a nearly perfect crystal region where r.m.s. variations in the curve width and the peak position are less than 1 µrad. Rocking-curve topographs of plate B obtained from the polished side: (c) map of the curve width (FWHM) and (d) map of the curve peak position (midpoint). The units on the colorbars are microradians. The arrows in each subfigure indicate directions in the reciprocal lattice. The horizontal direction was aligned with the axis of rotation in the rocking-curve measurements. The maps are scaled in the vertical direction to represent projections on the studied crystal surfaces.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 23| Part 5| September 2016| Pages 1118-1123
https://doi.org/10.1107/S1600577516011796
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