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Figure 8
Reciprocal lattice sections hk[\textstyle\bar{1\over 2}], hk0 and hk[\textstyle{1\over 2}] around the 300 Bragg reflection reconstructed from CCD data images collected from a pure lead phosphate single crystal held at 2.0 GPa in a diamond–anvil cell. The layers hk[\textstyle\bar{1\over 2}] and hk[\textstyle{1\over 2}] show clear evidence of diffuse reflections at the half-integer positions along the arrowed directions, as shown by the intensity profiles on the right. Note that in addition, the hk[\textstyle\bar{1\over 2}] and hk[\textstyle{1\over 2}] layers also exhibit `spill-over' of the Bragg reflections from the hk0 layer. These sections can be compared with the much stronger diffuse scattering displayed in Fig. 7[link].

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 60| Part 1| January 2004| Pages 1-9
doi:10.1107/S0108768103026582
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