Exploring the electromechanical response and electric field-induced dielectric anomalies in PMN-PT electroceramics
| Autor: | E. B. Araujo, E. C. Lima, Jose E. García, José de los Santos Guerra, C. A. Guarany |
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| Přispěvatelé: | Universidade Federal de Uberlândia (UFU), Universidade Federal Do Tocantins, Universidade Estadual Paulista (UNESP), Universitat Politècnica de Catalunya - BarcelonaTech, Universitat Politècnica de Catalunya. Departament de Física, Universitat Politècnica de Catalunya. CEMAD - Caracterització Elèctrica de Materials i Dispositius |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
QC501-721
Ferroelectrics Materials science Electric fields Ferroelectricity Physics::Optics domain-walls Dielectric dielectric response pmn–pt Condensed Matter::Materials Science Electricity Electric field PMN-PT Electrical and Electronic Engineering Ferroelectricitat Camps elèctrics Física [Àrees temàtiques de la UPC] business.industry Ferroelectric ceramics ferroelectrics Condensed Matter Physics Dielectric response Electronic Optical and Magnetic Materials electric field Ceramics and Composites Optoelectronics Electroceramics business PMN–PT |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Journal of Advanced Dielectrics, Vol 11, Iss 3, Pp 2140005-1-2140005-7 (2021) |
| Popis: | Made available in DSpace on 2022-04-28T19:40:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-06-01 Electromechanical and dielectric properties of PMN-PT ferroelectric ceramics are investigated. In particular, dielectric response studies focus on the investigation of the influence of the DC applied electric field on the dielectric permittivity as a function of temperature and frequency. Results reveal an electric field driven dielectric anomaly in the dielectric permittivity curves, (E), which in turn prevails in the whole ferroelectric phase region and continuously vanishes for temperatures near the paraelectric-ferroelectric phase transition temperature. A schematic model for the domains dynamics of the studied material is proposed taking into account the simultaneous contribution of both 90° and 180° domains walls. Grupo de Ferroelétricos e Materiais Multifuncionais Instituto de Física Universidade Federal de Uberlândia, Uberlândia Universidade Federal Do Tocantins, Porto Nacional Departamento de Física e Química Universidade Estadual Paulista Department of Physics Universitat Politècnica de Catalunya - BarcelonaTech Departamento de Física e Química Universidade Estadual Paulista |
| Databáze: | OpenAIRE |
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