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On the capacitance versus voltage response and tunability of ferroelectrics: A microscopic model
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10.1063/1.4791757
/content/aip/journal/jap/113/7/10.1063/1.4791757
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/7/10.1063/1.4791757
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Membrane under hydrostatic pressure and (b) under uniaxial force.

Image of FIG. 2.
FIG. 2.

Domain wall displacement at a distance l from equilibrium position by the action of external electric field .

Image of FIG. 3.
FIG. 3.

Frequency dependence of real (solid line) and imaginary (dashed line) dielectric permittivity for different damping coefficient λ: (a) and (b) .

Image of FIG. 4.
FIG. 4.

Behavior of real and imaginary dielectric permittivity under a bias electric field for different frequencies, for very small coercive field. (a) for different frequencies, (b) for , (c) for .

Image of FIG. 5.
FIG. 5.

Ferroelectric hysteresis loop generated using Eq. (30) .

Image of FIG. 6.
FIG. 6.

Behavior of curves due to hysteretic effect. Dispersion is notable for high frequencies( ).

Image of FIG. 7.
FIG. 7.

curves involving polarization switching.

Image of FIG. 8.
FIG. 8.

curves showing a overlap as Ec decreases.

Image of FIG. 9.
FIG. 9.

curves for (circles) and the inverse quadratic model (solid line). Fitting was performed for the right hand side branch of the curve. All the measurements were performed at a frequency of 100 kHz (probing field).

Image of FIG. 10.
FIG. 10.

hysteresis loop (solid line) and the reconstructed loop from curves (circles).

Image of FIG. 11.
FIG. 11.

curves for

Image of FIG. 12.
FIG. 12.

hysteresis loop (solid line) and the reconstructed loop from curves (circles). The divergence between these results is attributed to conductivity current.

Image of FIG. 13.
FIG. 13.

experimental curves for

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/content/aip/journal/jap/113/7/10.1063/1.4791757
2013-02-21
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: On the capacitance versus voltage response and tunability of ferroelectrics: A microscopic model
http://aip.metastore.ingenta.com/content/aip/journal/jap/113/7/10.1063/1.4791757
10.1063/1.4791757
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