Novel Concept of Non-Debye Dipole Relaxation Processes for the Interpretation of Physical Origin of Dielectric Loss in the Glass Formers, Drugs, Polymers and Plastic Crystals

2016/08/18 by G. Govindaraj, Govindaraj, G.
Materials Science · Engineering · #Material Dynamics and Properties #Glass properties and applications #Acoustic Wave Phenomena Research

paper · pdf · doi:10.48550/arxiv.1608.05304

Abstract

The physical origin of dielectric loss is shown to be sum of n number of subunits relaxation of a molecule, where n=1,2,3.. For each subunit relaxation, the idea of intermolecular dipole-dipole interactions triggered non-Debye dipole, (\bf G)_n=((1-g_d)\bf G₀)_n, and the ensuing dual dipole (\bf G_±)_n=(\bf G₀±\bf G)_n, relaxation processes is proposed, where \bf G_-=g_d\bf G₀, \bf G₊=(2-g_d)\bf G₀, and \bf G₀ is a Debye dipole. Each subunit motion is statistically highly independent process and discriminated by Debye and non-Debye relaxation (NDR) time, where g_d is an exponent 0

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