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Switching mechanism of polarization vortex in single-crystal ferroelectric nanodots
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10.1063/1.3515847
/content/aip/journal/apl/97/19/10.1063/1.3515847
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/19/10.1063/1.3515847
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

The three-dimensional polarization distributions before (a) and after (b) vortex switching. The curled electric field of is applied in (b) and the normalized vorticity magnitude is set as . The characteristic vorticity is set as .

Image of FIG. 2.
FIG. 2.

The polarization distributions in the middle plane of the nanodot at different normalized evolution times: (a) , (b) , (c) , (d) , (e) , and (f) ( and ).

Image of FIG. 3.
FIG. 3.

The free energy density distributions in the middle plane of the nanodot (a) total free energy density and (b) the elastic energy density . The highest energy density is located at the center of the dot. The switching begins from four corners in Fig. 2 but not from the center due to the elastic constraint. The characteristic energy density is set as .

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/content/aip/journal/apl/97/19/10.1063/1.3515847
2010-11-08
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Switching mechanism of polarization vortex in single-crystal ferroelectric nanodots
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/19/10.1063/1.3515847
10.1063/1.3515847
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