TITLE

Scaling and universality of ac conductivity and dielectric response in disordered materials under pressure

AUTHOR(S)
Sakellis, I.; Papathanassiou, A. N.; Grammatikakis, J.
PUB. DATE
July 2010
SOURCE
Applied Physics Letters;7/26/2010, Vol. 97 Issue 4, p042904
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Scaling of physical quantities describing the ac response is a common feature of disordered matter, while in some cases, empirical functions have been proposed. The exact forms of analytic functions that scale complex conductivity and permittivity are derived in this work by exploring the effect of pressure at various temperatures on the ac conductivity of polypyrrole. The scaling behavior is visualized within the frame of percolation and self-similarity.
ACCESSION #
52616433

 

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