Electron microscopy
Dielectric Constant of Ferroelectric Crystals
- Practical Electron Microscopy and Database -
- An Online Book -
Microanalysis | EM Book                                                                                   http://www.globalsino.com/EM/        

This book (Practical Electron Microscopy and Database) is a reference for TEM and SEM students, operators, engineers, technicians, managers, and researchers.


In some ferroelectric crystals, the temperature dependence of the dielectric constant can be reasonably accurately represented by the Curie-Weiss law,
         ε - ε0 = C/(T-T0) ------------------------- [3345]
         C -- The Curie constant.
         ε -- The permittivity of the material.
         ε0 -- The permittivity of vacuum.         
         T0 -- The Curie-Weiss temperature, which in general differs from the Curie temperature (Tc).

Equation 2382a indicates that when the temperature of the crystal is close to T0, the dielectric constant becomes very large.

In some ferroelectrics, Tc is aproximately equal to T0, while in others Tc is far from T0.



The book author (Yougui Liao) welcomes your comments, suggestions, and corrections, please click here for submission. If you let book author know once you have cited this book, the brief information of your publication will appear on the “Times Cited” page.