Figure 4: Pressure dependent Bragg X-ray diffraction measurements.
From: A microscopic view on the Mott transition in chromium-doped V2O3

(a) Bragg X-ray diffraction (300) line of (V0.989Cr0.011)2O3 under pressure at room temperature. The peak at the left corresponds to the lattice parameters of the PI phase, whereas the one at the right corresponds to PM. The spectra from violet to red were taken at pressures from 0 to 20 kbar, corresponding to the data points in Figure 4b and c. (b) PM intensity over the total one (PM+PI) as a function of P for the (300) line (circles) and for the (214) line (triangles). Solid symbols represent the same quantity calculated from the f EMA parameter (see above). (c) c/a ratio of the lattice parameters versus P extracted from Figure 4a.