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: 雜誌貢獻期刊論文同行評審

9 引文 斯高帕斯(Scopus)


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.

頁(從 - 到)2633-2637
期刊Journal of the European Ceramic Society
出版狀態已發佈 - 2003

ASJC Scopus subject areas

  • 陶瓷和複合材料
  • 材料化學


深入研究「High frequency dielectric properties of Ba(Mg<sub>1/3</sub> Ta<sub>2/3</sub>)O<sub>3</sub> complex perovskite ceramics」主題。共同形成了獨特的指紋。