Complex materials are composed of basic units which invariably interact with anharmonic
potentials. It is well known that the dynamics of systems with anharmonic interaction are …

First, several impedance spectroscopy models found useful for data fitting and interpretation
of dielectric-and conductive-system frequency data are briefly summarized and compared …

Dielectric and conductivity measurements were carried out on the potassium niobate
ceramics both as a function of temperature (50 to 550° C) and frequency (10 2 to 10 6 Hz). A …

Experimental frequency-dependent conductivity relaxation spectra of a number of molten,
glassy, and crystalline ionic conductors that show both the presence of the near constant …

The paper (Sibik, J.; Elliott, SR; Zeitler, JAJ Phys. Chem. Lett. 2014, 5, 1968–1972) used
terahertz time-domain spectroscopy (THz-TDS) to study the dynamics of the polyalcohols …

The conduction mechanism of polymer nano-composite electrolytes are studied using
broadband dielectric spectroscopy over a wide range of frequency and temperature. The …

A solution casting method was successfully used to realize polymer nanocomposite
electrolytes consisting of polyethylene oxide as polymer host, lithium hexafluoroarsenate as …

At temperatures below the nominal glass transition temperature T gα, the structural α-
relaxation and the Johari–Goldstein (JG) β-relaxation are too slow to contribute to …

Towards cooler solid oxide fuel cells: Disorder and dimensionality (see picture) play an
important role in determining ion mobility of bulk and artificially nanolayered materials and …

The ac conductivity of a new class of disordered solids, ie mechanochemically synthesized
amorphous fast ion conducting Ag2S–Sb2S3 materials, has been investigated in the audio …