Figure 4
(a) O K-edges measured at the same pressures as the Si L2,3-edge data extracted for momentum transfers of 8.7, 6.3 and 3.5 Å−1. (b) Si L2,3-edge data from quartz after compression to 0, 10 and 24 GPa, measured at a momentum transfer of 8.5 Å−1. The data were extracted after the described refinement of the ROI. |