Abstract
Molecular dynamics simulation (MD) has been performed to investigate the partial dynamical structure factors Sξη(k, ω) of the superionic phases for (AgxCu1-x)Br of x = 0.1, which contains two kinds of mobile cations, Ag+ and Cu+. From the obtained Sξη(k,ω), the longitudinal acoustic (LA), the longitudinal optical (LO), and the transverse acoustic (TA) modes have been observed. All these modes are propagated mainly by Br ions. The interaction between ions is also discussed using the model based on the plasma frequency.
