Composition and poling process dependence of phase and piezoelectric activity of Er:PMN-PT crystals

Piezoelectric response of erbium-doped (1- x )Pb(Mg 1/3 Nb 2/3 )O 3 - x PbTiO 3 (Er:PMN-PT) single crystals with various compositions and phases was studied using Rayleigh analysis. High temperature poling process was introduced to optimize the piezoelectric properties of the [001]-oriented Er:PMN-P...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2022-06, Vol.33 (16), p.13418-13425
Main Authors: Long, Wei, Fang, Pinyang, Guo, Feifei, He, Aiguo, Xi, Zengzhe
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composition
Crystal structure
Dielectric properties
Electric fields
Electric properties
Erbium
High temperature
Materials Science
Optical and Electronic Materials
Phase transitions
Piezoelectricity
Single crystals
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Summary:Piezoelectric response of erbium-doped (1- x )Pb(Mg 1/3 Nb 2/3 )O 3 - x PbTiO 3 (Er:PMN-PT) single crystals with various compositions and phases was studied using Rayleigh analysis. High temperature poling process was introduced to optimize the piezoelectric properties of the [001]-oriented Er:PMN-PT crystals. The Rayleigh analysis results show that the intrinsic contribution was dominated to the piezoelectric properties for the Er:PMN-PT crystals. The intrinsic and extrinsic piezoelectric responses of the Er:PMN- x PT, 0.29 ≤  x  ≤ 0.33, showed the larger values (~ 2000 pC/N) for the composition near the R-M phase boundary. The maximum piezoelectric coefficient was 2200 pC/N for the Er:PMN-0.33PT crystals. The piezoelectric response can be significantly enhanced by the high-temperature poling process, and the maximum was 2800 pC/N for the Er:PMN-0.29PT crystal. This ultra-high piezoelectric response was attributed to easing in the polarization rotation of the rhombohedral phase at high temperatures.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-022-08278-7