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Dynamical and scattering properties of ferroelectrics
Structural phase transitions in perovskite type crystals
Determination of the complex permittivity of ADP
31 other sections not shown
atoms axis barium titanate basis vectors BaTiOg behaviour calculated coefficients components corresponding Curie point Curie temperature curve damping decrease defects density dielectric constant dielectric relaxation dipoles direction dispersion displacement domain structure domain walls effect elastic electric field electrodes electrostrictive equations equilibrium experimental ferroelectric ferroelectric crystal ferroelectric phase ferroelectric transition Fousek frequency function hysteresis loops increase interaction internal variables ionic ions lattice linear matrix measurements mechanism microwave nucleus observed obtained optical paraelectric phase parameters permittivity perovskite phase transition phonon Phys plane polarisation polaritons positive Prague Proc properties proton pyroelectric relation relaxation resonance Rochelle salt sample scattering shown shows single crystals soft mode solid spontaneous polarization surface layers switching symmetry temperature dependence tetragonal theory thermal thermodynamic thickness tilt tion transition temperature tric twinning unit cell voltage wave vector zero