Li-containing ceramics with the TWB structure as new disordered ferroelectric materials

Author

Kryshtop, V.G. ; Sidorenko, E.N. ; Turik, A.V.

Author_Institution

Inst. of Phys., Rostov State Univ., Russia

fYear

1998

fDate

1998

Firstpage

499

Lastpage

502

Abstract

Temperature-frequency dependences of dielectric permittivity for Li-containing ceramics of solid solutions Ba_xPb_4-xLi₂Nb₁₀O₃₀ with the tetragonal wolfram bronze (TWB) structure have been studied. The presence of ferroelectric-paraelectric phase transition and deep low-frequency dispersion of the dielectric permittivity have been established for all studied compounds. Possible mechanisms responsible for dielectric dispersion and their connection with disordered arrangement of Li cations have been discussed

Keywords

barium compounds; ferroelectric ceramics; ferroelectric transitions; lead compounds; lithium compounds; permittivity; (BaPb)₄Li₂Nb₁₀O₂₀; Ba_xPb_4-xLi₂Nb₁₀O ₃₀; Li cations; Li-containing ceramics; TWB structure; deep low-frequency dispersion; dielectric permittivity; disordered arrangement; disordered ferroelectric materials; ferroelectric-paraelectric phase transition; temperature-frequency dependences; tetragonal wolfram bronze structure; Bonding; Ceramics; Chemicals; Dielectrics; Earth; Ferroelectric materials; Permittivity; Physics; Piezoelectric materials; Solids;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 1998. ISAF 98. Proceedings of the Eleventh IEEE International Symposium on

Conference_Location

Montreux

ISSN

1099-4734

Print_ISBN

0-7803-4959-8

Type

conf

DOI

10.1109/ISAF.1998.786741

Filename

786741