Fig. 3: Ultrafast structural changes inferred by X-ray diffraction. | Nature Communications

Fig. 3: Ultrafast structural changes inferred by X-ray diffraction.

From: Strain wave pathway to semiconductor-to-metal transition revealed by time-resolved X-ray powder diffraction

Fig. 3

Evolution of important inter-atomic angles, distances, and unit cell volume changes for the β- (a–c) and λ- (d–f) phases (ϕijk = Tii-Tij-Tik angles and Dij = Tii-Tij distances). The evolution of the monoclinic ϕ angle is also reported for the λ- phase (f). Thick transparent solid colored lines are guides for the eye. Schematic representation of the observed local distortions (exaggerated for clarity) for the β- (g) and λ- (h) phases. In (g), the λ- structure is represented in light orange for reference and in (h), the red line is the m mirror planes lost at Tc. A topo of structural distortion shown in gray contour lines: dotted—before, solid—after excitation.

Back to article page