Nonlinear dielectric spectroscopy
著者
書誌事項
Nonlinear dielectric spectroscopy
（Advances in dielectrics）
Springer, c2018
- : hardback
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注記
Includes bibliographical references and index
内容説明・目次
内容説明
This book introduces the ideas and concepts of nonlinear dielectric spectroscopy, outlines its history, and provides insight into the present state of the art of the experimental technology and understanding of nonlinear dielectric effects. Emphasis is on what can be learned from nonlinear experiments that could not be derived from the linear counterparts.
The book explains that nonlinear dielectric spectroscopy can be used as a tool to measure structural recovery or physical aging, as well as connections between dynamics and thermodynamic variables such as enthalpy and entropy. Supercooled liquids in their viscous regime are ideal candidates for investigating nonlinear effects, because they are particularly sensitive to changes in temperature, and thus also to changes in the electric field. Other interesting materials covered are plastic crystals and complex liquids near criticality. The book also points out that, compared with other techniques such as mechanical shear experiments, the nonlinear regime of dielectric spectroscopy is special in the sense that the energies involved always remain small compared with thermal energies. To demonstrate this, nonlinear features of mechanical experiments are discussed. Theoretical approaches to nonlinear effects are particularly complicated because the tools available for the linear regime no longer apply. As a result, there is no single generally accepted theory to nonlinear dielectric responses of real liquids. Various approaches to nonlinear dielectric features have been reported, and the different aspects are communicated in several chapters. The book communicates recent progress most effectively through individual contributions from specialists in their respective fields.Chapter 'Third and Fifth Harmonic Responses in Viscous Liquids' is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
目次
Introduction.- Experiment.- Non-linear effects associated with entropy reduction.- Nonlinear phenomena in complex liquids and mixtures.- Higher order conductivity effects in ionic liquids.- Electric cleaning as nonlinear effect.- Third harmonic signals in viscous liquids.- Dielectric hole burning?.- Plastic crystals.- Isochronal conditions.- Non-linear shear mechanical responses.- Theory/Modeling.- Theory of third and fifth order susceptibilities.- Theory of dielectric response at high fields.- Nonlinear dielectric relaxation of polar molecules in strong ac and dc fields.- Models of high order dielectric responses
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