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RESEARCH PRODUCT
Evolution of dielectric properties in transparent PLZT 8.3/70/30 ceramics at the diffused phase transition
Andris SternbergH. SchmittM. KundzinshEriks Birkssubject
PermittivityPhase transitionMaterials scienceCondensed matter physicsField (physics)business.industryElectric susceptibilityPhysics::OpticsDielectricCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsPolarization densityOpticsElectric fieldDielectric lossbusinessdescription
Abstract The time evolution of dielectric properties after a temporary change of temperature and electric field is investigated. It is found, that below the temperature of ˛' maximum Tm the change of temperature and electric field creates an increase of dielectric permittivity followed by logarithmic decay when the change of these parameters is finished. At every temperature the dielectric properties are characterized by a unique ˛'(t) independent on previous thermal history. If the applied electric field is E< Ec, the state of polarization is not affected. The dependence on dielectric constant of storage time under field as well as field intensity is determined.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1999-01-01 | Ferroelectrics |