Items of Interest
The dielectric properties of materials have come to play a fundamental role in the description of physical phenomena in many branches of modern science, technology, and engineering. Over the last several decades, the equivalent frequency range of Dielectric Spectroscopy (DS) has been expanded by various experimental techniques so dielectric relaxation processes of systems can be measured over an extremely wide range of characteristic times (10 5 s - 10 -12 s).
a result, these techniques now occupy a special place among numerous modern
methods used in physical and chemical analyses of materials. Since dielectric
spectroscopy measures the time evolution of molecular polarization, the technique
is especially sensitive to intermolecular interactions and their role in molecular
cooperative processes. Dielectric spectroscopy provides a link between the
dynamics of molecular motion of the individual constituents of the complex
material and the characterization of its bulk properties. The recent successful
developments of the Time Domain Dielectric spectroscopy methods and Broadband
Dielectric Spectroscopy have radically changed the role of dielectric spectroscopy
as an effective tool for structural investigation in solids and liquids on
macroscopic, microscopic and mesoscopic levels.