教師資料查詢 | 類別: 期刊論文 | 教師: 林諭男 I-nan Lin (瀏覽個人網頁)

標題:High frequency dielectric properties of Ba(Mg1/3Ta2/3)O3 complex perovskite ceramics
學年92
學期1
出版(發表)日期2003/12/01
作品名稱High frequency dielectric properties of Ba(Mg1/3Ta2/3)O3 complex perovskite ceramics
作品名稱(其他語言)
著者林諭男; Lin, I. N.; Chia, C. T.; Liu, H. L.; Chen, Y. C.; Cheng, H. F.; Chi, C. C.
單位淡江大學物理學系
出版者Elsevier
著錄名稱、卷期、頁數Journal of the European Ceramic Society 23(14), pp.2633-2637
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.
關鍵字Ba(Mg,Ta,)O3 materials;FTIR spectroscopy;Microwave ceramics;Dielectric properties;Raman spectroscopy
語言英文
ISSN0955-2219
期刊性質國內
收錄於
產學合作
通訊作者
審稿制度
國別中華民國
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