Dielectric Relaxation as a Cooperative Process

Abstract

A comparison of the degree of cooperativity of orientational molecular motions in different kinds of (thermodynamical) phases is presented based on the (literature data of the) Dissado-Hill short and long-range correlation parameters n and m. A possibility of using fractal concepts for an interpretation of the power-law frequency dependence of susceptibility in a disordered medium is pointed out.

Key Words:

• dielectric relaxation
• liquid crystals
• plastic crystals
• fractal-like scaling
• short and long-range correlations