Jo, Wook ; Daniels, John E. ; Damjanovic, Dragan ; Kleemann, Wolfgang ; Rödel, Jürgen (2013)
Two-stage processes of electrically induced-ferroelectric to relaxor transition in 0.94(Bi1/2Na1/2)TiO3-0.06BaTiO3.
In: Applied Physics Letters, 102 (19)
doi: 10.1063/1.4805360
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The stability of electrically induced long-range ferroelectric order in a relaxor 0.94(Bi1/2Na1/2)TiO3-0.06BaTiO3 ceramic material has been investigated by temperature-dependent X-ray diffraction and electrical property measurements. The depolarization and ferroelectric-to-relaxor transition are identified as separate and discrete processes. It is observed that the induced ferroelectric domains first lose their ferroelectric/ferroelastic texture coincident with a peak signal in the thermally induced depolarization current. With further increase in temperature, the detextured ferroelectric domains are dissociated into nanoscale entities. This fragmentation marks the ferroelectric-to-relaxor transition. It is suggested that the ferroelectric-to-relaxor transition has features of a second order phase transition.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2013 |
| Autor(en): | Jo, Wook ; Daniels, John E. ; Damjanovic, Dragan ; Kleemann, Wolfgang ; Rödel, Jürgen |
| Art des Eintrags: | Bibliographie |
| Titel: | Two-stage processes of electrically induced-ferroelectric to relaxor transition in 0.94(Bi1/2Na1/2)TiO3-0.06BaTiO3 |
| Sprache: | Englisch |
| Publikationsjahr: | 22 April 2013 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Physics Letters |
| Jahrgang/Volume einer Zeitschrift: | 102 |
| (Heft-)Nummer: | 19 |
| DOI: | 10.1063/1.4805360 |
| Kurzbeschreibung (Abstract): | The stability of electrically induced long-range ferroelectric order in a relaxor 0.94(Bi1/2Na1/2)TiO3-0.06BaTiO3 ceramic material has been investigated by temperature-dependent X-ray diffraction and electrical property measurements. The depolarization and ferroelectric-to-relaxor transition are identified as separate and discrete processes. It is observed that the induced ferroelectric domains first lose their ferroelectric/ferroelastic texture coincident with a peak signal in the thermally induced depolarization current. With further increase in temperature, the detextured ferroelectric domains are dissociated into nanoscale entities. This fragmentation marks the ferroelectric-to-relaxor transition. It is suggested that the ferroelectric-to-relaxor transition has features of a second order phase transition. |
| Freie Schlagworte: | barium compounds, bismuth compounds, dielectric depolarisation, electric domains, ferroelasticity, ferroelectric ceramics, ferroelectric transitions, relaxor ferroelectrics, sodium compounds, texture, X-ray diffraction |
| Zusätzliche Informationen: | SFB 595 A1 |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > A - Synthese > Teilprojekt A1: Herstellung keramischer, texturierter Akuatoren mit hoher Dehnung 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung > A - Synthese DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 595: Elektrische Ermüdung 11 Fachbereich Material- und Geowissenschaften Zentrale Einrichtungen DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche DFG-Sonderforschungsbereiche (inkl. Transregio) |
| Hinterlegungsdatum: | 14 Mai 2013 07:17 |
| Letzte Änderung: | 14 Mai 2013 07:17 |
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