期刊論文

學年 92
學期 2
出版(發表)日期 2004-05-01
作品名稱 X-ray multiple-wave coherent interaction in a quasi-two-dimensional material NbSe2-2H
作品名稱(其他語言)
著者 Du, Chao-hung; Tang, Mau-tsu; Stetsko, Yuri P
單位 淡江大學物理學系
出版者 Wiley-Blackwell
著錄名稱、卷期、頁數 Acta Crystallographica Section A 60(3), pp.209-213
摘要 The first observation of the X-ray multiple-wave interaction in an incommensurate charge-density-wave (CDW) modulated structure at low temperatures is reported for an example of a quasi-two-dimensional material, NbSe2-2H. Via the coherent interaction between the X-ray waves propagating in the CDW-modulated structure and the host structure, the phase-dependent intensity variations of a CDW reflection were detected. In accord with a centrosymmetric structure, the phases of the structure-factor triplets of two CDW reflections and a Bragg reflection of the host structure were determined to be either 0 or 180°, and not to vary with temperature. Relative phase differences of the two CDW reflections are also deduced.
關鍵字 X-ray multiple-wave; modulated structure; incommensurate modulation; charge-density wave; electron-density distribution
語言 en
ISSN 0108-7673
期刊性質
收錄於
產學合作
通訊作者 杜昭宏
審稿制度
國別
公開徵稿
出版型式 紙本 電子版
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