Correlations of polarizations and depolarization fields in ferroelectrics All details of this investigations are presented in the paper [Phys. Rev. B 108, 134101 (2023)] https://www.researchgate.net/publication/374455609_Statistical_correlations_of_random_polarization_and_electric_depolarization_fields_in_ferroelectrics_httpsarxivorgabs230911951
A conceptual problem of the electric-field-mediated polarization correlations during a stochastic formation of polarization domain structure in ferroelectrics is addressed by using an exactly solvable stochastic model of polarization development in a uniaxial ferroelectric [Phys. Rev. B 107, 144109 (2023)]. A full set of time-dependent two-point correlation coefficients between all random variables is derived analytically, evaluated numerically, and presented graphically in three dimensions. They are particularly required for the analysis of nonlinear phenomena involving spatial dispersion like optical second harmonic generation and scattering.