Schrade, David ; Müller, Ralf ; Gross, Dietmar (2006)
Phase field simulations in ferroelectric materials.
In: Proceedings in Applied Mathematics and Mechanics (PAMM), 6 (1)
doi: 10.1002/pamm.200610208
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
The hindering of domain wall movement by defects in ferroelectric materials is closely connected to electric fatigue. A movable domain wall in a ferroelectric material in most cases is modelled as a singular surface which allows the use of configurational forces. In contrast, the present approach treats the polarization as an order parameter, extending the total energy by a phase separation energy and a domain wall energy. The polarization then no longer has a discontinuity at the domain wall but is a continuous vector field (phase field). As an example, a numerical simulation of domain evolution under stress free boundary conditions is presented. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2006 |
| Autor(en): | Schrade, David ; Müller, Ralf ; Gross, Dietmar |
| Art des Eintrags: | Bibliographie |
| Titel: | Phase field simulations in ferroelectric materials |
| Sprache: | Englisch |
| Publikationsjahr: | 2006 |
| Verlag: | Wiley-Blackwell-STM |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Proceedings in Applied Mathematics and Mechanics (PAMM) |
| Jahrgang/Volume einer Zeitschrift: | 6 |
| (Heft-)Nummer: | 1 |
| DOI: | 10.1002/pamm.200610208 |
| URL / URN: | https://onlinelibrary.wiley.com/doi/pdf/10.1002/pamm.2006102... |
| Kurzbeschreibung (Abstract): | The hindering of domain wall movement by defects in ferroelectric materials is closely connected to electric fatigue. A movable domain wall in a ferroelectric material in most cases is modelled as a singular surface which allows the use of configurational forces. In contrast, the present approach treats the polarization as an order parameter, extending the total energy by a phase separation energy and a domain wall energy. The polarization then no longer has a discontinuity at the domain wall but is a continuous vector field (phase field). As an example, a numerical simulation of domain evolution under stress free boundary conditions is presented. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) |
| Fachbereich(e)/-gebiet(e): | 13 Fachbereich Bau- und Umweltingenieurwissenschaften 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Fachgebiete der Mechanik 13 Fachbereich Bau- und Umweltingenieurwissenschaften > Fachgebiete der Mechanik > Fachgebiet Kontinuumsmechanik |
| Hinterlegungsdatum: | 20 Nov 2008 08:25 |
| Letzte Änderung: | 04 Mai 2022 09:43 |
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