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Dynamic scaling properties of multistep polarization response in ferroelectrics

Genenko, Yuri A. ; Zhukov, Sergey ; Zhang, Mao-Hua ; Wang, Ke ; Koruza, Jurij (2022)
Dynamic scaling properties of multistep polarization response in ferroelectrics.
In: Journal of Applied Physics, 131 (23)
doi: 10.1063/5.0091350
Artikel, Bibliographie

Kurzbeschreibung (Abstract)

Ferroelectrics are multifunctional smart materials finding applications in sensor technology, micromechanical actuation, digital information storage, etc. Their most fundamental property is the ability of polarization switching under an applied electric field. In particular, understanding of switching kinetics is essential for digital information storage. In this regard, scaling properties of the temporal polarization response are well-known for 180°-switching processes in ferroelectrics characterized by a unique field-dependent local switching time. Unexpectedly, these properties are now observed in multiaxial polycrystalline ferroelectrics, exhibiting a number of parallel and sequential non-180°-switching processes with distinct switching times. This behavior can be explained by a combination of the multistep stochastic mechanism and the inhomogeneous field mechanism models of polarization reversal. Scaling properties are predicted for polycrystalline ferroelectrics of tetragonal, rhombohedral, and orthorhombic symmetries and are exemplarily demonstrated by the measurements of polarization kinetics in (K,Na)NbO3-based ferroelectric ceramic over a timescale of 7 orders of magnitude. Dynamic scaling properties allow insight into the microscopic switching mechanisms, on the one hand, and into statistical material characteristics, on the other hand, thereby providing the description of temporal polarization with high accuracy. The gained deeper insight into the mechanisms of multistep polarization switching is crucial for future ultrafast and multilevel digital information storage.

Typ des Eintrags: Artikel
Erschienen: 2022
Autor(en): Genenko, Yuri A. ; Zhukov, Sergey ; Zhang, Mao-Hua ; Wang, Ke ; Koruza, Jurij
Art des Eintrags: Bibliographie
Titel: Dynamic scaling properties of multistep polarization response in ferroelectrics
Sprache: Englisch
Publikationsjahr: 21 Juni 2022
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of Applied Physics
Jahrgang/Volume einer Zeitschrift: 131
(Heft-)Nummer: 23
DOI: 10.1063/5.0091350
Kurzbeschreibung (Abstract):

Ferroelectrics are multifunctional smart materials finding applications in sensor technology, micromechanical actuation, digital information storage, etc. Their most fundamental property is the ability of polarization switching under an applied electric field. In particular, understanding of switching kinetics is essential for digital information storage. In this regard, scaling properties of the temporal polarization response are well-known for 180°-switching processes in ferroelectrics characterized by a unique field-dependent local switching time. Unexpectedly, these properties are now observed in multiaxial polycrystalline ferroelectrics, exhibiting a number of parallel and sequential non-180°-switching processes with distinct switching times. This behavior can be explained by a combination of the multistep stochastic mechanism and the inhomogeneous field mechanism models of polarization reversal. Scaling properties are predicted for polycrystalline ferroelectrics of tetragonal, rhombohedral, and orthorhombic symmetries and are exemplarily demonstrated by the measurements of polarization kinetics in (K,Na)NbO3-based ferroelectric ceramic over a timescale of 7 orders of magnitude. Dynamic scaling properties allow insight into the microscopic switching mechanisms, on the one hand, and into statistical material characteristics, on the other hand, thereby providing the description of temporal polarization with high accuracy. The gained deeper insight into the mechanisms of multistep polarization switching is crucial for future ultrafast and multilevel digital information storage.

Zusätzliche Informationen:

Artikel-ID: 234102

Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialmodellierung
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe
TU-Projekte: DFG|KO5100/1-1|Polarisationsumschal
Hinterlegungsdatum: 11 Jan 2023 08:53
Letzte Änderung: 11 Jan 2023 10:39
PPN: 503552526
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