Dielectric tunability in (1−x)[Pb(Mg1/3Nb2/3)O3]−xPbTiO3 ceramics for tunable devices application

Author

Guarany, C.A. ; Guerra, J.D.S. ; Araujo, E.B. ; Lima, E.C.

Author_Institution

Grupo de Ferroeletricos e Mater. Multifuncionais, Univ. Fed. de Uberlandia, Uberlândia, Brazil

fYear

2010

fDate

9-12 Aug. 2010

Firstpage

1

Lastpage

4

Abstract

The dielectric properties of the 0.65[Pb(Mg_1/3Nb_2/3)O₃]-0.35PbTiO₃ ferroelectric ceramic composition were investigated viewing the capability to be used for tunable microwave applications. The dielectric response has been studied for three selected temperatures (300 K, 370 K and 400 K), below the paraelectric-ferroelectric phase transition temperature, as a function of the applied `bias´ electric field. The obtained dielectric tunability was found to be around 60%, under an electric field of 19 kV/cm, which makes the studied ceramic composition an excellent candidate for application in the electro-electronic industry, as tunable devices.

Keywords

dielectric function; ferroelectric ceramics; ferroelectric transitions; high-frequency effects; lead compounds; permittivity; PMN-PbTiO₃; ceramics; dielectric permittivity; dielectric tunability; ferroelectric ceramic composition; paraelectric-ferroelectric phase transition temperature; temperature 300 K to 400 K; tunable microwave applications; Ceramics; Dielectrics; Electric fields; Hysteresis; Permittivity; Temperature; Temperature dependence; ceramics; component; dielectric; ferroelectrics; properties;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics (ISAF), 2010 IEEE International Symposium on the

Conference_Location

Edinburgh

ISSN

1099-4734

Print_ISBN

978-1-4244-8190-3

Electronic_ISBN

1099-4734

Type

conf

DOI

10.1109/ISAF.2010.5712274

Filename

5712274