Resonance Damping of the THz-frequency Transverse Acoustic Phonon in the Relaxor Ferroelectric KTa1-xNbxO3

J. Toulouse, E. Iolin, B. Hennion +2

The damping (${\Gamma }_a$) of the transverse acoustic (TA) phonon in single crystals of the relaxor $KT{a}_{1-x}N{b}_x{O}_3$ with x=0.15-0.17 was studied by means of high resolution inelastic c…