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Orientation dependence of the intrinsic converse longitudinal piezoelectric constant for 0.67Pb(Mg1/3Nb2/3)O3–0.33PbTiO3 ferroelectric films with a rhombohedral structure

Jun Ouyang1, D M Kim2, C B Eom2, R Ramesh1,3 and A L Roytburd1

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The general orientation dependence of the intrinsic converse longitudinal piezoelectric constant dnnf in an epitaxial rhombohedral film is calculated by taking into account the effect of substrate clamping. Theoretical predictions are made for dnnf of epitaxial 0.67Pb(Mg1/3Nb2/3)O3–0.33PbTiO3 rhombohedral films, which are compared with experimental results on pseudo-cubic (001), (110) and (111) orientations.


PACS

77.65.Bn Piezoelectric and electrostrictive constants

77.55.+f Dielectric thin films

77.84.Dy Niobates, titanates, tantalates, PZT ceramics, etc.

Subjects

Condensed matter: electrical, magnetic and optical

Surfaces, interfaces and thin films

Dates

Issue 4 (August 2005)

Received 10 September 2004, in final form 17 December 2004

Published 4 May 2005



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