Interaction of domain walls with defects in ferroelectric materials / Schrade D., Mueller R., Gross D., Utschig T., Shur V.Ya., Lupascu D.C. // Mechanics of Materials. - 2007. - V. 39, l. 2. - P. 161-174.

ISSN:
01676636
Type:
Article
Abstract:
A thermodynamic approach is used to derive the driving force on a domain wall in a piezoelectric material. Using 2D finite element simulations, the influence of different kinds of defects on the kinetics of a domain wall in ferroelectric-ferroelastic gadolinium molybdate, Gd2 (MoO4)3 (GMO), is studied. Results are compared with experiments conducted on single crystal GMO containing extensive bulk defects. It is found that domain wall movement is impeded for certain defects while it is virtually unaffected for others. Qualitatively, results are in good agreement with experimental findings. © 2006 Elsevier Ltd. All rights reserved.
Author keywords:
Configurational force; Defects; Domain wall; Driving force; Energy-momentum tensor; Eshelby tensor; Material force; Piezoelectric material
Index keywords:
Configurational force; Domain walls; Driving force; Energy momentum tensors; Eshelby tensors; Material force; Computer simulation; Defects; Finite element method; Piezoelectric materials; Single cryst
DOI:
10.1016/j.mechmat.2006.04.002
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Affiliations Institute of Mechanics, TU Darmstadt, Hochschulstr. 1, D-64289 Darmstadt, Germany; Institute of Materials Science, TU Darmstadt, Petersenstr. 23, D-64287 Darmstadt, Germany; Institute of Physics and Applied Mathematics, Ural State University, 620083 Ekaterinburg, Russian Federation
Author Keywords Configurational force; Defects; Domain wall; Driving force; Energy-momentum tensor; Eshelby tensor; Material force; Piezoelectric material
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Correspondence Address Schrade, D.; Institute of Mechanics, TU Darmstadt, Hochschulstr. 1, D-64289 Darmstadt, Germany; email: schrade@mechanik.tu-darmstadt.de
CODEN MSMSD
Language of Original Document English
Abbreviated Source Title Mech Mater
Source Scopus