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

研究成果: 雜誌貢獻文章

7 引文 斯高帕斯(Scopus)

摘要

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.

原文英語
頁(從 - 到)2633-2637
頁數5
期刊Journal of the European Ceramic Society
23
發行號14
DOIs
出版狀態已發佈 - 2003 一月 1

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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