Microscopic model of dielectric α-relaxation in disordered media

✍ Scribed by Airat A. Khamzin, Raoul R. Nigmatullin, Ivan I. Popov, Bektur A. Murzaliev

• Book ID: 119932543
• Publisher: SP Versita
• Year: 2013
• Tongue: English
• Weight: 328 KB
• Volume: 16
• Category: Article
• ISSN: 1311-0454
• DOI: 10.2478/s13540-013-0011-1

✦ Synopsis

The micro/mesoscopic theory of dielectric relaxation has been developed. Based on the fractional kinetics it gives a possibility to obtain the desired expression for the complex dielectric permittivity (CDP) and describe the asymmetric peaks that are created presumably by the so-called "excess wing" located in high-frequency region. The well-known empirical Cole-Davidson expression and its generalization for the CDP were obtained from this theory. This theory is based on self-similar phenomenon and multi-channel organization of relaxation process in disordered dielectrics. The relaxation parameters are connected with the structural parameters of the medium considered.