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:Correlation of microwave dielectric properties and normal vibration modes of xBa„Mg1Õ3Ta2Õ3…O3– „1Àx…Ba„Mg1Õ3Nb2Õ3…O3 ceramics: I. Raman spectroscopy
學年92
學期1
出版(發表)日期2003/09/01
作品名稱Correlation of microwave dielectric properties and normal vibration modes of xBa„Mg1Õ3Ta2Õ3…O3– „1Àx…Ba„Mg1Õ3Nb2Õ3…O3 ceramics: I. Raman spectroscopy
作品名稱(其他語言)
著者Chia, C. T.; Chen, Y. C.; Cheng, H. F.; 林諭男; Lin, I. N.
單位淡江大學物理學系
出版者College Park: American Institute of Physics (AIP)
著錄名稱、卷期、頁數Journal of Applied Physics 94(5), pp.3360-3364
摘要Micro-Raman measurements of xBa~Mg1/3Ta2/3)O3–(12x)Ba~Mg1/3Nb2/3)O3 perovskite ceramics, with x50, 0.25, 0.50, 0.75, and 1.0, were taken at room temperature. Raman results clearly show the 1:2 ordered structures of these compounds. Four A1g and five Eg Raman modes were unambiguously assigned. The A1g(O) phonon of the oxygen-octahedron stretch mode, which possesses the largest energy and width of all the observed Raman phonons, significantly influences the microwave dielectric properties of the materials. A higher vibration frequency of A1g(O) mode results in a lower dielectric constant, and a wider width of the mode corresponds to a lower Q3f value.
關鍵字
語言英文
ISSN0021-8979
期刊性質國外
收錄於SCI
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式紙本
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