Liu, Hairui ; Koruza, Jurij ; Rytz, Daniel ; Maglione, Mario ; Rödel, Jürgen (2016)
Orientation-dependent electromechanical properties of Mn-doped
(Li,Na,K)(Nb,Ta)O3 single crystals.
In: Applied Physics Letters, 109 (15)
doi: 10.1063/1.4964465
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Orientation and temperature dependence of dielectric and electromechanical properties of Mndoped (Li,Na,K)(Nb,Ta)O3 single crystals were investigated. Samples exhibited very low dielectric losses, with tand between 0.03 and 0.05 over a broad temperature range between room temperature and 480 °C. Influences of the crystallographic structure and external electric field on polarization and strain parameters are discussed. The orientation-dependent electrical properties were ascribed to the anisotropic polarization rotation in the crystals. Higher maximum polarization, coercive field, and negative strain were achieved when the electric field was oriented along one of the spontaneous polarization directions. The highest maximum unipolar strain of 0.42% (at 3 kV/mm) and the normalized strain d33* of 1391 pm/V were obtained in the [001]PC-oriented sample at 100°C, which was much higher than the values obtained for the [110]PC-oriented sample. Further insight of the phase transition behavior is given by comparing the temperature-dependence of the small- and large-signal dielectric and piezoelectric properties. The observed changes are rationalized by the different increase rates of the dielectric permittivity and piezoelectric coefficients with temperature.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2016 |
| Autor(en): | Liu, Hairui ; Koruza, Jurij ; Rytz, Daniel ; Maglione, Mario ; Rödel, Jürgen |
| Art des Eintrags: | Bibliographie |
| Titel: | Orientation-dependent electromechanical properties of Mn-doped (Li,Na,K)(Nb,Ta)O3 single crystals |
| Sprache: | Englisch |
| Publikationsjahr: | 10 Oktober 2016 |
| Verlag: | AIP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Applied Physics Letters |
| Jahrgang/Volume einer Zeitschrift: | 109 |
| (Heft-)Nummer: | 15 |
| DOI: | 10.1063/1.4964465 |
| Kurzbeschreibung (Abstract): | Orientation and temperature dependence of dielectric and electromechanical properties of Mndoped (Li,Na,K)(Nb,Ta)O3 single crystals were investigated. Samples exhibited very low dielectric losses, with tand between 0.03 and 0.05 over a broad temperature range between room temperature and 480 °C. Influences of the crystallographic structure and external electric field on polarization and strain parameters are discussed. The orientation-dependent electrical properties were ascribed to the anisotropic polarization rotation in the crystals. Higher maximum polarization, coercive field, and negative strain were achieved when the electric field was oriented along one of the spontaneous polarization directions. The highest maximum unipolar strain of 0.42% (at 3 kV/mm) and the normalized strain d33* of 1391 pm/V were obtained in the [001]PC-oriented sample at 100°C, which was much higher than the values obtained for the [110]PC-oriented sample. Further insight of the phase transition behavior is given by comparing the temperature-dependence of the small- and large-signal dielectric and piezoelectric properties. The observed changes are rationalized by the different increase rates of the dielectric permittivity and piezoelectric coefficients with temperature. |
| 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: | 13 Okt 2016 05:37 |
| Letzte Änderung: | 24 Jun 2020 06:54 |
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