| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5466037 | Thin Solid Films | 2017 | 32 Pages |
Abstract
The sharp decrease of the remnant ferroelectric and piezoelectric properties of Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMNT) thin films close to the Morphotropic Phase Boundary (MPB) respect to their corresponding bulk ceramics is a major drawback for their integration in microdevices. In order to take full advantage of the excellent piezoelectric properties of polycrystalline PMNT in thin film form, a multilayer configuration with PbTiO3 (PT) layers is proposed. The PT layers generate an internal electric bias within the PMNT layer, which anchor an induced polarization in it. This results in a significant improvement of the piezoelectric behavior, obtaining remnant piezoelectric coefficients, d33 r, as high as 67 pm Vâ 1. The role of the thickness of the PT layers used is discussed, in order to find the optimum configuration for these multilayers.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
H. El Hosiny Ali, R. Jiménez, P. Ramos, J. Pérez de la Cruz, J.R.A. Fernandes, I. Bretos, M.L. Calzada, J. Ricote,