Title:	Nonlinear Dielectric Spectroscopy
Authors:	Richert, Ranko
Keywords:	Spectroscopy
Issue Date:	2018
Publisher:	Springer International Publishing AG,
Description:	Dielectric spectroscopy has a long history of characterizing the magnitude and time or frequency dependence of the polarization that results from an external electric field. Technical developments have facilitated access to a broad range of timescales and frequencies, covering at least the range from 1 ps to 1 year in terms of observed equilibrium relaxation times. This broadband property together with the high resolution and measurement automation have turned dielectric relaxation measurements into a standard tool for characterizing the dynamics of a wide range of materials by measuring the permittivity, e. In a typical experiment, polarization P = ve0E is proportional to the magnitude of the applied field E, implying that the susceptibility v = e – 1 remains independent of the amplitude of the electric field. In fact, many experimental reports do not specify the field amplitude, because it is considered irrelevant for the results. At sufficiently high electric fields, however, the dielectric behavior will depend on the field magnitude in this nonlinear regime.
URI:	http://10.6.20.12:80/handle/123456789/75595
ISBN:	978-3-319-77574-6
Appears in Collections:	Chemistry

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