Enhanced pyroelectric effect in self-supported films of BaTi O3 with polycrystalline macrodomains

Yahin Yvry, Vera Lyahovitskaya, Ilya Zon, Igor Lubomirsky, Ellen Wachtel, Alexander L. Roytburd

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Self-supported films of nanocrystalline BaTi O3 exhibit a two orders of magnitude enhancement of the pyroelectric coefficient (≈1 μC cm2 K) with respect to the value measured for a single BaTi O3 crystal. The enhancement strongly depends on film geometry and appears only in buckled films where ferroelectric grains undergo self-organization into polycrystalline macrodomains. The authors posit that the enhancement of the pyroelectric effect is related to 90° polarization switching and is, therefore, similar in nature to an "extrinsic" piezoelectric effect.

Original languageEnglish
Article number172905
JournalApplied Physics Letters
Volume90
Issue number17
DOIs
Publication statusPublished - 2007

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augmentation
polarization
coefficients
geometry
crystals

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Enhanced pyroelectric effect in self-supported films of BaTi O3 with polycrystalline macrodomains. / Yvry, Yahin; Lyahovitskaya, Vera; Zon, Ilya; Lubomirsky, Igor; Wachtel, Ellen; Roytburd, Alexander L.

In: Applied Physics Letters, Vol. 90, No. 17, 172905, 2007.

Research output: Contribution to journalArticle

Yvry, Yahin ; Lyahovitskaya, Vera ; Zon, Ilya ; Lubomirsky, Igor ; Wachtel, Ellen ; Roytburd, Alexander L. / Enhanced pyroelectric effect in self-supported films of BaTi O3 with polycrystalline macrodomains. In: Applied Physics Letters. 2007 ; Vol. 90, No. 17.
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