Pramanick, A. ; Dmowski, W. ; Egami, T. ; Budisuharto, A. Setadi ; Weyland, Florian ; Novak, Nikola ; Christanson, A. D. ; Borreguero, J. M. ; Abernathy, D. L. ; Jørgensen, M. R. V. (2018)
Stabilization of Polar Nanoregions in Pb-free Ferroelectrics.
In: Physical Review Letters, 120 (207603)
doi: 10.1103/PhysRevLett.120.207603
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The formation of polar nanoregions through solid-solution additions is known to enhance significantly the functional properties of ferroelectric materials. Despite considerable progress in characterizing the microscopic behavior of polar nanoregions (PNR), understanding their real-space atomic structure and dynamics of their formation remains a considerable challenge. Here, using the method of dynamic pair distribution function, we provide direct insights into the role of solid-solution additions towards the stabilization of polar nanoregions in the Pb-free ferroelectric of Ba(Zr,Ti)O3. It is shown that for an optimum level of substitution of Ti by larger Zr ions, the dynamics of atomic displacements for ferroelectric polarization are slowed sufficiently below THz frequencies, which leads to increased local correlationamong dipoles within PNRs. The dynamic pair distribution function technique demonstrates a unique capability to obtain insights into locally correlated atomic dynamics in disordered materials, including new Pb-free ferroelectrics, which is necessary to understand and control their functional properties.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2018 |
| Autor(en): | Pramanick, A. ; Dmowski, W. ; Egami, T. ; Budisuharto, A. Setadi ; Weyland, Florian ; Novak, Nikola ; Christanson, A. D. ; Borreguero, J. M. ; Abernathy, D. L. ; Jørgensen, M. R. V. |
| Art des Eintrags: | Bibliographie |
| Titel: | Stabilization of Polar Nanoregions in Pb-free Ferroelectrics |
| Sprache: | Englisch |
| Publikationsjahr: | 22 Mai 2018 |
| Verlag: | American Physical Society |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review Letters |
| Jahrgang/Volume einer Zeitschrift: | 120 |
| (Heft-)Nummer: | 207603 |
| DOI: | 10.1103/PhysRevLett.120.207603 |
| Kurzbeschreibung (Abstract): | The formation of polar nanoregions through solid-solution additions is known to enhance significantly the functional properties of ferroelectric materials. Despite considerable progress in characterizing the microscopic behavior of polar nanoregions (PNR), understanding their real-space atomic structure and dynamics of their formation remains a considerable challenge. Here, using the method of dynamic pair distribution function, we provide direct insights into the role of solid-solution additions towards the stabilization of polar nanoregions in the Pb-free ferroelectric of Ba(Zr,Ti)O3. It is shown that for an optimum level of substitution of Ti by larger Zr ions, the dynamics of atomic displacements for ferroelectric polarization are slowed sufficiently below THz frequencies, which leads to increased local correlationamong dipoles within PNRs. The dynamic pair distribution function technique demonstrates a unique capability to obtain insights into locally correlated atomic dynamics in disordered materials, including new Pb-free ferroelectrics, which is necessary to understand and control their functional properties. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe |
| Hinterlegungsdatum: | 22 Mai 2018 07:57 |
| Letzte Änderung: | 26 Nov 2021 14:29 |
| PPN: | |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum