6533b7dbfe1ef96bd1271647

RESEARCH PRODUCT

Continuous theory of switching in geometrically confined ferroelectrics

E. V. KirichenkoVladimir A. Stephanovich

subject

Condensed Matter::Materials ScienceMaterials scienceCondensed matter physicsMultiferroicsDielectricThin filmCondensed Matter PhysicsPolarization (waves)Fourier seriesFerroelectricityElectronic Optical and Magnetic MaterialsEnergy functional

description

A theory of ferroelectric switching in geometrically confined samples like thin films and multilayers with domain structure has been proposed. For that we use Landau–Khalatnikov (LK) equations with free energy functional being dependent on polarization gradients. In this case, the consistent theory can be developed as for thin ferroelectric films and multilayers the domain structure reduces to Fourier series in ferroelectric polarization. The specific calculations are presented for thin film ferroelectric with dead layers and ferro-/paraelectric multilayer. Our theory is generalizable to ferroelectrics and multiferroics with other geometries.

yearjournalcountryeditionlanguage
2014-03-12Ferroelectrics
10.1080/00150193.2014.889527http://www.tandfonline.com/doi/ref/10.1080/00150193.2014.889527