Cole-cole broadening in dielectric relaxation and strange kinetics

Alexander Puzenko, Paul Ben Ishai, Yuri Feldman

Research output: Contribution to journalArticlepeer-review

70 Scopus citations


We present a fresh appraisal of the Cole-Cole (CC) description of dielectric relaxation. While the approach is phenomenological, it demonstrates a fundamental connection between the parameters of the CC dispersion. Based on the fractal nature of the time set representing the interaction of the relaxing dipole with its encompassing matrix, and the Kirkwood-Froehlich correlation factor, a new 3D phase space linking together the kinetic and structural properties is proposed. The evolution of the relaxation process is represented in this phase space by a trajectory, which is determined by the variation of external macroscopic parameters. As an example, the validity of the approach is demonstrated on two porous silica glasses exhibiting a CC relaxation process.

Original languageEnglish
Article number037601
JournalPhysical Review Letters
Issue number3
StatePublished - 16 Jul 2010
Externally publishedYes


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