Fig. 2. EOS of bP in the A17, A7 and p-sc pressure ranges. The solid circles (cyan and blue) represent the data acquired in this study during the compression of bP using He as PTM. The blue points were obtained by Rietveld refinement of the XRD data. Empty symbols refer to the data reported by Kikegawa et al.17 (red triangles), Clark et al.18 (black squares) and Akahama et al.8 (green circles). The corresponding EOS type and fit parameters are indicated in Table S1 (ESI†). A drawing of each structure, obtained by a cif file in the corresponding pressure range, is also shown.
