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Information × Registration Number 0217U002113, 0115U005301 , R & D reports Title Investigation of nonlinear dynamics of the spatial distribution of ionic and electronic charge carriers in the polar-active thin-layer meso-and nanoscale structures. popup.stage_title Head Morozovska Anna Nikolaevna, Registration Date 19-01-2017 Organization Institute of physics NASU popup.description2 Research aimed at solving fundamental scientific problems interdependence nonlinear electro processes and dynamics reversing the polarization in polar active nanoscale structures with mixed ionic-electronic conductivity, given the distortion of the crystal lattice in the vicinity of defects in conjunction with the consequences of the effect Vegard and steric effects, including changing the parameters of the crystal lattice leading to changes in the magnitude and direction of the spontaneous polarization in the area of the moving ion and electron space charge. Object of study - electrotransport processes in polar active nanoscale structures with mixed ionic-electronic conductivity. The goal of the work is the theoretical study of nonlinear dynamics of the spatial distribution of ionic and electronic charge carriers and induced deformations and experimental study of electro-active polar characteristics of thin-layer, meso and nano-sized structures. The results and their novelty. First theoretically and experimentally studied the effect of changing the content of Nb and annealing conditions on the parameters and charging voltage-current-voltage characteristics of active polar heterostructures based on thin films SrBi2 (Ta1-xNbx) 2O9 (SBTN). The first time the influence of the spatial distribution of ionic and electronic charge carriers in polar, electromechanical and electrical characteristics of systems consisting of thin nanostructured films of ferroelectric-semiconductor-ionikiv and established correlations between linear hysteresis dynamics of space charge and a resistive nonlinearity conducted a detailed comparison of experimental results for nanostructured films SBTN with impurity cations and vacancies synthesized Belarusian stakeholders.Theoretical and practical significance. The influence of the spatial distribution of ionic and electronic charge carriers on the electrical properties of thin layers, the meso- and nanoscale ferroelectric films, semiconductor-ionics has been established for the first time. The influence of surface polarization screening for size effects of phase diagrams, polar and dielectric properties of ferroelectric-semiconductor nanoparticles different shapes. Proposals for further use of the work. Obtained results can be used for the issuance of recommendations for the creation film structures with controlled parameters to improve cell performance nonvolatile ferroelectric random access memory devices for functional nanoelectronics. Product Description popup.authors Єлісєєв Євген Анатолійович Морозовська Ганна Миколаївна Морозовський Микола Володимирович popup.nrat_date 2020-04-02 Close