High frequency dielectric properties of Ba(Mg1/3 Ta2/3)O3 complex perovskite ceramics

I. Nan Lin, Chih Ta Chia, Hsiang Lin Liu, Yi Chun Chen, Hsiu Fung Cheng, Cheng Chung Chi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The dielectric properties of Ba(Mg1/3Ta2/3) O3 and Ba(Mg1/3Nb2/3)O3 ceramics were investigated using Fourier transformed infrared and Raman spectroscopies. The real part of dielectric constant of these materials decreases when the heavier Ta atoms replaced the lighter Nb atoms, which is closely related to the shift of mode-frequency. The Q -factor of the materials depends weakly on the composition. The decrease in Q -factor with the frequency is due to the presence of a resonance mode at around 3 THz. Larger width of the breathing Raman mode, A1g[O], correlates very well with the lower Q-value of the BMN materials, as compared with the BMT materials.

Original languageEnglish
Pages (from-to)2633-2637
Number of pages5
JournalJournal of the European Ceramic Society
Volume23
Issue number14
DOIs
Publication statusPublished - 2003 Jan 1

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Dielectric properties
Perovskite
Atoms
Raman spectroscopy
Infrared spectroscopy
Permittivity
perovskite
Chemical analysis

Keywords

  • Ba(Mg,Ta,)O materials
  • Dielectric properties
  • FTIR spectroscopy
  • Microwave ceramics
  • Raman spectroscopy

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

High frequency dielectric properties of Ba(Mg1/3 Ta2/3)O3 complex perovskite ceramics. / Lin, I. Nan; Chia, Chih Ta; Liu, Hsiang Lin; Chen, Yi Chun; Cheng, Hsiu Fung; Chi, Cheng Chung.

In: Journal of the European Ceramic Society, Vol. 23, No. 14, 01.01.2003, p. 2633-2637.

Research output: Contribution to journalArticle

Lin, I. Nan ; Chia, Chih Ta ; Liu, Hsiang Lin ; Chen, Yi Chun ; Cheng, Hsiu Fung ; Chi, Cheng Chung. / High frequency dielectric properties of Ba(Mg1/3 Ta2/3)O3 complex perovskite ceramics. In: Journal of the European Ceramic Society. 2003 ; Vol. 23, No. 14. pp. 2633-2637.
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