Figure 5
From: Fano resonance of Li-doped KTa1−xNbxO3 single crystals studied by Raman scattering
A schematic illustration of the coupling between slow-relaxing CP (a broad spectrum indicates continuum states) and TO2 phonon (a sharp spectrum indicates discrete state).
The ΓCP and ΓTO2 are the relaxation rates of the CP and TO2 phonon, respectively, (ΓCP > ΓTO2). The displacement pattern of Slater mode is depicted in the right side, whereas dynamic PNRs is displayed in the left side. The local polarization of PNRs fluctuates along the equivalent [111] directions indicated by an arrow.
