Phonon coupling to dynamic short-range polar order in a relaxor ferroelectric near the morphotropic phase boundary

John A. Schneeloch, Zhijun Xu, B. Winn +4

We report neutron inelastic scattering experiments on single crystal PbMg${}_{1/3}$Nb${}_{2/3}$O${}_3$ doped with 32\% PbTiO${}_3$, a relaxor ferroelectric that lies close to the morph…