Schader, Florian H. ; Wang, Zhiyang ; Hinterstein, Manuel ; Daniels, John E. ; Webber, Kyle G. (2016)
Stress-modulated relaxor-to-ferroelectric transition in lead-free
(Na1/2Bi1/2)TiO3-BaTiO3 ferroelectrics.
In: Physical Review B, 93
doi: 10.1103/PhysRevB.93.134111
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The effect of external mechanical fields on relaxor 0.94(Na1/2Bi1/2)TiO3-0.06BaTiO3 was investigated by means of temperature- and stress-dependent dielectric constant measurements between 223 and 673 K. Analogous to previous investigations that showed an electric-field-induced ferroelectric long-range order in relaxor ferroelectrics, we show that compressive stress can also result in the transition to the long-range ferroelectric order, marked by the formation of an anomaly in the permittivity-temperature curves and a nonlinear, remanent change in permittivity during mechanical loading. In situ stress-dependent high-energy x-ray diffraction experiments were performed at room temperature and reveal an apparent phase transition during mechanical loading, consistent with previous macroscopic electrical measurements. The transition lines between the relaxor states and the stress-induced ferroelectric state were determined at constant temperatures with stress-dependent dielectric constant measurements, providing a stress-temperature phase diagram.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Schader, Florian H. ; Wang, Zhiyang ; Hinterstein, Manuel ; Daniels, John E. ; Webber, Kyle G. |
| Art des Eintrags: | Bibliographie |
| Titel: | Stress-modulated relaxor-to-ferroelectric transition in lead-free (Na1/2Bi1/2)TiO3-BaTiO3 ferroelectrics |
| Sprache: | Englisch |
| Publikationsjahr: | 20 April 2016 |
| Verlag: | American Physical Society |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Physical Review B |
| Jahrgang/Volume einer Zeitschrift: | 93 |
| DOI: | 10.1103/PhysRevB.93.134111 |
| Kurzbeschreibung (Abstract): | The effect of external mechanical fields on relaxor 0.94(Na1/2Bi1/2)TiO3-0.06BaTiO3 was investigated by means of temperature- and stress-dependent dielectric constant measurements between 223 and 673 K. Analogous to previous investigations that showed an electric-field-induced ferroelectric long-range order in relaxor ferroelectrics, we show that compressive stress can also result in the transition to the long-range ferroelectric order, marked by the formation of an anomaly in the permittivity-temperature curves and a nonlinear, remanent change in permittivity during mechanical loading. In situ stress-dependent high-energy x-ray diffraction experiments were performed at room temperature and reveal an apparent phase transition during mechanical loading, consistent with previous macroscopic electrical measurements. The transition lines between the relaxor states and the stress-induced ferroelectric state were determined at constant temperatures with stress-dependent dielectric constant measurements, providing a stress-temperature phase diagram. |
| 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 Apr 2016 06:18 |
| Letzte Änderung: | 22 Apr 2016 06:18 |
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