Mazur, Olga Y. ; Stefanovich, Leonid I. ; Genenko, Yuri A. (2024)
Universal kinetics of the stochastic formation of polarization domain structures in a uniaxial single-crystal ferroelectric.
In: Physical Review B, 109 (10)
doi: 10.1103/PhysRevB.109.104117
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Initial conditions after quenching from a high-temperature paraelectric phase to a low-temperature ferroelectric phase have a substantial impact on the temporal development and formation of stable polarization domain structures which eventually determine physical properties and the functionality of ferroelectrics. Based on the recently advanced exactly solvable model of the stochastic domain structure kinetics in a uniaxial ferroelectric [Phys. Rev. B 107, 144109 (2023)], we study the effect of the magnitude of the initial disorder, its initial correlation length, and polarization correlation function on the system evolution. For different shapes of the initial correlation function, the time-dependent correlation length and the two-point polarization correlation coefficient are calculated analytically, demonstrating universal features and good agreement with the available experimental data. Particularly, the magnitude of the charge density correlation function reveals a strong reduction of the bound charges at the nominally charged domain walls which was recently observed experimentally in uniaxial ferroelectrics. Consequently, the integrodifferential equations of evolution for the polarization correlation function and the mean polarization are numerically solved for different initial conditions. The temporal dependence of the polarization mean value and variance are evaluated, demonstrating the bifurcation behavior depending on the applied electric field. The impact of the initial state properties on the coercive field deciding between the single- and multidomain final states of the system is disclosed.
Typ des Eintrags: | Artikel |
---|---|
Erschienen: | 2024 |
Autor(en): | Mazur, Olga Y. ; Stefanovich, Leonid I. ; Genenko, Yuri A. |
Art des Eintrags: | Bibliographie |
Titel: | Universal kinetics of the stochastic formation of polarization domain structures in a uniaxial single-crystal ferroelectric |
Sprache: | Englisch |
Publikationsjahr: | 28 März 2024 |
Verlag: | American Physical Society |
Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review B |
Jahrgang/Volume einer Zeitschrift: | 109 |
(Heft-)Nummer: | 10 |
DOI: | 10.1103/PhysRevB.109.104117 |
Kurzbeschreibung (Abstract): | Initial conditions after quenching from a high-temperature paraelectric phase to a low-temperature ferroelectric phase have a substantial impact on the temporal development and formation of stable polarization domain structures which eventually determine physical properties and the functionality of ferroelectrics. Based on the recently advanced exactly solvable model of the stochastic domain structure kinetics in a uniaxial ferroelectric [Phys. Rev. B 107, 144109 (2023)], we study the effect of the magnitude of the initial disorder, its initial correlation length, and polarization correlation function on the system evolution. For different shapes of the initial correlation function, the time-dependent correlation length and the two-point polarization correlation coefficient are calculated analytically, demonstrating universal features and good agreement with the available experimental data. Particularly, the magnitude of the charge density correlation function reveals a strong reduction of the bound charges at the nominally charged domain walls which was recently observed experimentally in uniaxial ferroelectrics. Consequently, the integrodifferential equations of evolution for the polarization correlation function and the mean polarization are numerically solved for different initial conditions. The temporal dependence of the polarization mean value and variance are evaluated, demonstrating the bifurcation behavior depending on the applied electric field. The impact of the initial state properties on the coercive field deciding between the single- and multidomain final states of the system is disclosed. |
ID-Nummer: | Artikel-ID: 104117 |
Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialmodellierung |
Hinterlegungsdatum: | 27 Mai 2024 05:55 |
Letzte Änderung: | 27 Mai 2024 11:32 |
PPN: | 518630951 |
Export: | |
Suche nach Titel in: | TUfind oder in Google |
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