Figure 1
From: Pressure-induced reversal between thermal contraction and expansion in ferroelectric PbTiO3
A representative neutron diffraction pattern of PbTiO3 collected at 480 K and 0.71 GPa.
The observed and refined profiles are denoted, respectively, by open circles and red lines. NaCl is used for pressure calibration and C (graphite) is from the furnace.
