Evidence of polymorphic transformations of Sn under high pressure |
X-ray diffraction patterns at 22.8 GPa, 31.8 GPa, and 40.9 GPa, respectively. The vertical lines indicate the location of the diffraction peaks from Sn. The asterisks indicate the diffraction peaks from the rhenium gasket. The arrow in the left panel marks the location of the 110 peak of the bcc phase. The arrow in the right panel marks the location of the splitting peaks 121 and 211 of the bco phase. |