The model of a one-dimensional chain of harmonically coupled particles in local double-well potentials is investigated analytically in the displacive regime. A perturbation treatment of the interaction of a kink (wall separating ordered clusters) with extended states (optical phonons modified by...

By solving the Ornstein-Zernike equation together with the Rogers-Young closure relation for the correlation functions of binary liquid mixtures of hard spheres and Yukawa particles we calculate the concentration-concentration structure factor, Scc(k), for different values of the diameter ratio...