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Domain wall broadening mechanism for domain size effect of enhanced piezoelectricity in crystallographically engineered ferroelectric single crystals
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10.1063/1.2435584
/content/aip/journal/apl/90/4/10.1063/1.2435584
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/4/10.1063/1.2435584
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) Domain size effect in [111]-oriented tetragonal barium titanate single crystals. (a) Experimentally measured piezoelectric properties vs domain size [reproduced with permission (Ref. 4)]. (b) A linear relationship between the property increase and reciprocal domain size (domain wall density), where the data (∎) are calculated from (a), and the straight line is obtained by fitting. The result unambiguously attributes the piezoelectric property enhancement and domain size effect to domain walls.

Image of FIG. 2.
FIG. 2.

(Color online) Computer simulation of domain wall broadening behavior under electric field along nonpolar axis. (a) Equilibrium 90° domain wall and (110) twin boundary in tetragonal crystal without electric field. (b) Broadened domain wall composed of electric field-induced, heavily stressed [111] rhombohedral domain layer coherently sandwiched between tetragonal domains. The domain wall broadening mechanism explains the enhanced piezoelectric response along the nonpolar axis and the domain size (domain wall density) effect.

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/content/aip/journal/apl/90/4/10.1063/1.2435584
2007-01-25
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Domain wall broadening mechanism for domain size effect of enhanced piezoelectricity in crystallographically engineered ferroelectric single crystals
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/4/10.1063/1.2435584
10.1063/1.2435584
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