1. What is a high permittivity dielectric material?

A dielectric material is one that contains no electric charges capable of macroscopic movement, i.e. it is a medium that cannot conduct electric current. Examples include glass, ceramics and many plastics, as well as vacuum. Dielectrics can be gaseous, liquid or solid.

Despite the fact that dielectric media cannot conduct current, their behavior under an electric field is highly variable. In fact, the atoms making up the material can interact with an external electric field. This interaction creates a material polarization linked to the external electric field.

Permittivity, or more precisely dielectric permittivity, is the physical property that describes a medium's response to an applied electric field. It is a macroscopic quantity. It reflects the way in which the electric field influences the organization of electric charges in a given...