2. Main high permittivity materials
The most commonly used high permittivity dielectrics can be classified into a few families, although there are sometimes overlaps. Hereafter, we discuss some examples of classical and relaxor – ferroelectrics, with or without morphotropic phase boundary – and IBLC compounds, as well as composites using either high permittivity ceramics or insulated conductors or organized in a percolative network.
2.1 Ferroelectric
Ferroelectric ceramics are widely used in the development of high permittivity materials. While classical ferroelectrics represent a simple material for understanding physical phenomena, most applications use either solid solutions, to exploit morphotropic phase boundaries, or relaxers, for their rather broad permittivity peak. They are also often...
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Main high permittivity materials
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