Fig. 3: UED experimental observation at 300 K.
From: Photoinduced anisotropic lattice dynamic response and domain formation in thermoelectric SnSe
a Temporal evolution of the normalized diffraction intensity I/I0 of Bragg peaks {020}, {040}, {002} and {004} at 90 K. b Comparison of the intensity changes of Bragg peaks {002} at 90 and 300 K. The intensity drops faster at 300 K, i.e., time constant τ300K ~1.7 ps < τ90K ~20 ps. c The isotropic distribution around each Bragg peak in the intensity difference map at 300 K at 1.7 ps after laser pump.
