6533b7d9fe1ef96bd126d523

RESEARCH PRODUCT

Relation of Dielectric Permittivity and Electric Field Dependence of Polarization in Some Relaxors with Perovskite Structure

Andris SternbergMaija AntonovaM. DunceM. KundzinshEriks Birks

subject

PermittivityVacuum permittivityPolarization densityMaterials scienceCondensed matter physicsElectric fieldElectric susceptibilityRelative permittivityDielectricCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsDielectric spectroscopy

description

The dielectric nonlinearity is studied in ferroelectric relaxors 0.92PbMg1/3 Nb2/3O3-0.08PbTiO3, 0.4Na1/2Bi1/2TiO3-0.5SrTiO3-0.1PbTiO3 and Pb0.9075La0.0925 (Zr0.65Ti0.35)0.9775O3. It is shown that above the temperature of dielectric permittivity maximum nonlinearity of dielectric permittivity corresponds to electric field dependence of polarization. The influence of electric field on distribution of relaxation times is studied below the maximum of dielectric permittivity. The role of internal bias field in Pb0.9075La0.0925(Zr0.65Ti0.35)0.9775O3 ceramics is discussed.

https://doi.org/10.1080/00150193.2011.623633