Publicação:
Dielectric properties of Pb Nb2 O6 ferroelectric ceramics at cryogenic temperatures

Imagem de Miniatura

Arquivos

2-s2.0-34547838694.pdf (350.1 KB)

Data

2007-08-17

Autores

Orientador

Coorientador

Pós-graduação

Curso de graduação

Título da Revista

ISSN da Revista

Título de Volume

Editor

Tipo

Artigo

Direito de acesso

Acesso abertoAcesso Aberto

Resumo

Complex dielectric permittivity measurements in Pb Nb2 O6 ceramics were performed in a frequency and temperature range of 1 kHz-1 MHz and from 15 to 900 K, respectively. The results revealed two dielectric anomalies showing typical characteristics of relaxor ferroelectric materials at cryogenic temperatures. Comparison with other tetragonal tungsten bronze (TTB) structure-type materials suggests the existence of successive phase transitions, which until now were not reported. The observed low temperature dielectric behaviors seem to be due to intrinsic physical characteristics related to the TTB structure. © 2007 American Institute of Physics.

Descrição

Palavras-chave

Lead compounds, Natural frequencies, Permittivity, Phase transitions, Cryogenic temperatures, Dielectric anomalies, Dielectric permittivity measurements, Temperature range, Ferroelectric ceramics

Idioma

Inglês

Como citar

Applied Physics Letters, v. 91, n. 6, 2007.

URI

http://hdl.handle.net/11449/69821

Itens relacionados

Financiadores

Coleções

Ilha Solteira - FEIS - Faculdade de Engenharia

Unidades

Departamentos

Cursos de graduação

Programas de pós-graduação