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Modelling of the vertical deflection of ferroelectric bending tongues loaded at their free end

Cardoletti, Juliette ; Radetinac, Aldin ; Thiem, Daniel ; Walker, Julian ; Komissinskiy, Philipp ; Xu, Bai-Xiang ; Schlaak, Helmut ; Trolier-McKinstry, Susan ; Alff, Lambert (2019)
Modelling of the vertical deflection of ferroelectric bending tongues loaded at their free end.
In: AIP Advances, 9 (2)
doi: 10.1063/1.5082392
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

In this work, a model to describe the vertical deflection of ferroelectric bending tongues with a load at their free end is proposed. The model is based on the ferroelectric switching criterion developed by Hwang et al. [“Ferroelectric/ferroelastic interactions and a polarization switching model,” Acta Metall. Mater. 43, 2073–2084 (1995)] and the Euler-Bernoulli beam theory. It notably takes into account the geometry of the bending tongue, the mechanical and piezoelectric material properties, the applied electrical field, the crystallographic state of the ferroelectric thin film and its built-in strain. Hwang’s model is improved by incorporating strain saturation at high field, as expected for the butterfly loop. This allows accurate estimates of the vertical deflection for ferroelectric bending tongue based applications.

Typ des Eintrags: Artikel
Erschienen: 2019
Autor(en): Cardoletti, Juliette ; Radetinac, Aldin ; Thiem, Daniel ; Walker, Julian ; Komissinskiy, Philipp ; Xu, Bai-Xiang ; Schlaak, Helmut ; Trolier-McKinstry, Susan ; Alff, Lambert
Art des Eintrags: Bibliographie
Titel: Modelling of the vertical deflection of ferroelectric bending tongues loaded at their free end
Sprache: Englisch
Publikationsjahr: 2019
Verlag: American Institute of Physics
Titel der Zeitschrift, Zeitung oder Schriftenreihe: AIP Advances
Jahrgang/Volume einer Zeitschrift: 9
(Heft-)Nummer: 2
DOI: 10.1063/1.5082392
URL / URN: https://doi.org/10.1063/1.5082392
Zugehörige Links:
Kurzbeschreibung (Abstract):

In this work, a model to describe the vertical deflection of ferroelectric bending tongues with a load at their free end is proposed. The model is based on the ferroelectric switching criterion developed by Hwang et al. [“Ferroelectric/ferroelastic interactions and a polarization switching model,” Acta Metall. Mater. 43, 2073–2084 (1995)] and the Euler-Bernoulli beam theory. It notably takes into account the geometry of the bending tongue, the mechanical and piezoelectric material properties, the applied electrical field, the crystallographic state of the ferroelectric thin film and its built-in strain. Hwang’s model is improved by incorporating strain saturation at high field, as expected for the butterfly loop. This allows accurate estimates of the vertical deflection for ferroelectric bending tongue based applications.

Sachgruppe der Dewey Dezimalklassifikatin (DDC): 600 Technik, Medizin, angewandte Wissenschaften > 600 Technik
Fachbereich(e)/-gebiet(e): 11 Fachbereich Material- und Geowissenschaften
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft
11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Dünne Schichten
Hinterlegungsdatum: 02 Aug 2024 12:34
Letzte Änderung: 02 Aug 2024 12:34
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