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Thickness dependency of 180° stripe domains in ferroelectric ultrathin films: A first-principles-based study
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10.1063/1.2799252
/content/aip/journal/apl/91/15/10.1063/1.2799252
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/15/10.1063/1.2799252
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Energy per unit cell as a function of stripe periodicity for (a) , (b) , and (c) epitaxial (001) PZT thin films under a compressive strain of , an 80% screening of the maximum depolarizing field, and at . The supercells used in the MC simulation are labeled close to the corresponding data points. The zero in energy corresponds to the case of an ideal stress-free paraelectric cubic phase at .

Image of FIG. 2.
FIG. 2.

Periodicity as a function of the square root of the thickness-related integer of epitaxial (001) PZT films under a compressive strain of , an 80% screening of the maximum depolarizing field, and at . The corresponding is labeled close to the data points. The linear fitting (and its extrapolation) of the data points is shown as a solid line (a dotted line). An error bar of unit cell is added to the ground-state periodicities of and 36 films, reflecting an uncertainty related to the used domain configurations and supercells’ dimensions.

Image of FIG. 3.
FIG. 3.

(Color online) Cross-sectional view of dipole arrangement of stripe domains in (a) , (b) , and (c) epitaxial (001) PZT films under a compressive strain of , an 80% screening of the maximum depolarizing field, and at . The red and blue arrows characterize local dipoles having positive and negative components along the axis, respectively. The dotted lines represent domain boundaries, while the nominal dipole directions in the domains are indicated by black arrows.

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/content/aip/journal/apl/91/15/10.1063/1.2799252
2007-10-12
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Thickness dependency of 180° stripe domains in ferroelectric ultrathin films: A first-principles-based study
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/15/10.1063/1.2799252
10.1063/1.2799252
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