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Figure 1
(a) 2D diffraction image of Se under 90 GPa pressure. (b) XRD patterns of Se compressed under selected pressures from 90 to 210 GPa at ambient temperature, evolving from Se-V to Se-V′, then to Se-VI. A zoomed-in view of (b) with more XRD patterns added between the plotted ones, from 90 to 160 GPa, of 2θ (c) 11 to 13°; (d) 13 to 21°.

IUCrJ
Volume 9| Part 2| March 2022| Pages 253-260
ISSN: 2052-2525
https://doi.org/10.1107/S2052252522000252