Han, Hyoung-Su ; Jo, Wook ; Rödel, Jürgen ; Hong, In-Ki ; Tai, Weon-Pil ; Lee, Jae-Shin (2012)
Coexistence of ergodicity and nonergodicity in LaFeO3-modified Bi1/2(Na0.78K0.22)1/2TiO3relaxors.
In: Journal of Physics: Condensed Matter, 24 (36)
doi: 10.1088/0953-8984/24/36/365901
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The effect of LaFeO3 addition to Bi1/2(Na0.78K0.22)1/2TiO3 ceramics on the phase stability and macroscopic functional properties was investigated. Similarly to other chemical modifiers known in the literature, LaFeO3 addition suppresses an electric-field-induced long-range ferroelectric order, giving rise to a giant unipolar strain of ~0.3% at 2 mol% LaFeO3 addition. Time-dependent changes in polarization and strain hysteresis loops both during successive electrical cycling and after removal of the electric field suggest that a specimen with 2 mol% LaFeO3 consists of both ergodic and nonergodic phases, which is unique among the known relaxor materials.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2012 |
| Autor(en): | Han, Hyoung-Su ; Jo, Wook ; Rödel, Jürgen ; Hong, In-Ki ; Tai, Weon-Pil ; Lee, Jae-Shin |
| Art des Eintrags: | Bibliographie |
| Titel: | Coexistence of ergodicity and nonergodicity in LaFeO3-modified Bi1/2(Na0.78K0.22)1/2TiO3relaxors |
| Sprache: | Englisch |
| Publikationsjahr: | 21 August 2012 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Physics: Condensed Matter |
| Jahrgang/Volume einer Zeitschrift: | 24 |
| (Heft-)Nummer: | 36 |
| DOI: | 10.1088/0953-8984/24/36/365901 |
| Kurzbeschreibung (Abstract): | The effect of LaFeO3 addition to Bi1/2(Na0.78K0.22)1/2TiO3 ceramics on the phase stability and macroscopic functional properties was investigated. Similarly to other chemical modifiers known in the literature, LaFeO3 addition suppresses an electric-field-induced long-range ferroelectric order, giving rise to a giant unipolar strain of ~0.3% at 2 mol% LaFeO3 addition. Time-dependent changes in polarization and strain hysteresis loops both during successive electrical cycling and after removal of the electric field suggest that a specimen with 2 mol% LaFeO3 consists of both ergodic and nonergodic phases, which is unique among the known relaxor materials. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Nichtmetallisch-Anorganische Werkstoffe 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften |
| Hinterlegungsdatum: | 22 Aug 2012 13:04 |
| Letzte Änderung: | 05 Mär 2013 10:02 |
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