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Effect of intrinsic surface stress on single-vertex structure of polarization in ferroelectric nanoparticles
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10.1063/1.3409122
/content/aip/journal/apl/96/16/10.1063/1.3409122
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/16/10.1063/1.3409122
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

A typical single-vertex structure of polarization within a ferroelectric nanodisk. (a) A schematic drawing of ferroelectric nanodisk with a height less than the diameter . (b) The circular cross-section (1–2 plane) of the corresponding ferroelectric nanodisk with diameter of . During the finite element computing, compressive stress of is applied at the surface with ideal open-circuit boundary condition and free-polarization condition. Arrows represent the in-plane polarization vectors.

Image of FIG. 2.
FIG. 2.

The nonlinear relations between the normalized minimum allowable dimension for single-vertex structure and the applied compressive stress , where , and . Different curves represent the results from the same computational procedure but with different values of , where is the characteristic quantity used in Ref. 14.

Image of FIG. 3.
FIG. 3.

The linear relations between the normalized minimum allowable dimension for single-vertex structure and the square root of the normalized exchange energy parameter . It shows that higher applied stress yields a higher slop of such linear relation.

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/content/aip/journal/apl/96/16/10.1063/1.3409122
2010-04-23
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effect of intrinsic surface stress on single-vertex structure of polarization in ferroelectric nanoparticles
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/16/10.1063/1.3409122
10.1063/1.3409122
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