教師資料查詢 | 類別: 期刊論文 | 教師: 杜昭宏 Chao-hung Du (瀏覽個人網頁)

標題:X-ray multi-beam resonant diffraction analysis of crystal symmetry for layered perovskite YBaCuFeO5
學年105
學期1
出版(發表)日期2016/09/30
作品名稱X-ray multi-beam resonant diffraction analysis of crystal symmetry for layered perovskite YBaCuFeO5
作品名稱(其他語言)
著者Wen-Chung Liu; Yu-Zhan Zheng; Yu-Chieh Chih; Yen-Chung Lai; Yi-Wei Tsai; Yan-Zong Zheng; Chao-Hung Du; Fang-Cheng Chou; Yun-Liang Soo; Shih-Lin Chang
單位
出版者
著錄名稱、卷期、頁數Journal of Applied Crystallography 49, p.1721-1725
摘要The open question of crystal symmetry for YBaCuFeO5, still under debate, is resolved by using diffraction anomalous fine structure and resonant multi-beam X-ray diffraction at the Fe and Cu K edges. The different asymmetric intensity distributions observed at 7, 7.1305 and 8.9945 keV give direct evidence that the space group of YBaCuFeO5 should be P4/mmm with the distance between Cu and apical O atoms longer than that between Fe and O atoms. This approach provides a direct way to resolve detailed structural symmetry which is indeterminate in conventional Bragg diffraction.
關鍵字X-ray multiple diffraction;diffraction anomalous fine structure;DAFS;dynamical X-ray diffraction theory;crystal symmetry;YBaCuFeO5
語言英文
ISSN1600-5767;0021-8898
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別英國
公開徵稿
出版型式,電子版,紙本
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