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Resonances in ferroelectric phononic superlattice
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10.1063/1.4757989
/content/aip/journal/apl/101/15/10.1063/1.4757989
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/15/10.1063/1.4757989
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Inversely poled superlattice in ferroelectric wafer, and experimental schematic. 1—The ZX-cut LiNbO3 wafer with periodically poled domains (a) and (b), 2—input metal electrode for applying rf voltage V(ω), 3—output metal electrode for reading electric current, 4—coaxial connector, FG—function generator, PC—computer, interdomain walls are shown in grey.

Image of FIG. 2.
FIG. 2.

Dispersion of the zero antisymmetric mode in the ferroelectric inversely poled superlattice fabricated in the ZX-cut 0.5-mm-thick lithium niobate with domain length d = 0.45 mm. The acoustic wave cannot propagate within the stop-band in the range of 3.27 to 3.67 MHz, where the dispersion curve is absent as no solutions are possible due to destructive diffraction from the domain walls.

Image of FIG. 3.
FIG. 3.

Computer simulation of rf-current versus frequency from the multidomain superlattice in the ZX-cut LiNbO3 wafer with 44 domain pairs of 0.45-mm-long each. K = 0.11, Q = 105.

Image of FIG. 4.
FIG. 4.

Spectra of 3-cycle-burst at input electrode 2 of Fig. 1 (plot 1) and output rf-current detected by electrode 3 of Fig. 1 (plot 2) from the sample LN-ZX-MD3-AEC. Two maxima at 3.275 MHz in the 1st ABZ and 3.670 MHz in the 2nd ABZ are indicated by the arrows, the stop band falls between the arrows.

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/content/aip/journal/apl/101/15/10.1063/1.4757989
2012-10-08
2014-04-17
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Resonances in ferroelectric phononic superlattice
http://aip.metastore.ingenta.com/content/aip/journal/apl/101/15/10.1063/1.4757989
10.1063/1.4757989
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