Investigation of relaxation and transport processes in LiPO(N) glasses

► The acoustic and dielectric spectroscopies are used to study the relaxation and transport mechanisms in LiPO(N) glasses. ► The double power law function was used for the simulation of the acoustic spectra and 3D representation for dielectric peak. ► The activation energies obtained from both the acoustic and electrical measurements are compared. ► The same sites could be responsible for the acoustic and electrical relaxation processes and/or transport mechanisms.