教師資料查詢 | 類別: 期刊論文 | 教師: 彭維鋒 Pong, Way-faung (瀏覽個人網頁)

標題:Electronic Structure of EuMo6Se8 Studied by X-Ray Absorption Spectroscopy
學年97
學期2
出版(發表)日期2009/03/01
作品名稱Electronic Structure of EuMo6Se8 Studied by X-Ray Absorption Spectroscopy
作品名稱(其他語言)
著者K. Asokan; O. Pena; L. Le Polles; Jan, J.C. ; Chiou, J.W; Pong, W.F.
單位淡江大學物理學系
出版者New York: Springer New York LLC
著錄名稱、卷期、頁數Journal of Cluster Science 20(1), pp.205-211
摘要The rare-earth based molybdenum chalcogenides, REMo6Se8 (RE = rare-earth metals) have been extensively studied because of their unique crystal structure based on Mo6Se8 clusters and their outstanding properties involving coexistence of superconductivity and magnetism. Among all these compounds, Ce and Eu based chalcogenides are magnetic and non-superconductors and possess many novel properties. Understanding their electronic structure is likely to provide valuable information about these materials. We employ X-ray absorption near-edge structure (XANES) spectroscopy at Mo and Se K-edges of EuMo6Se8 to identify the local environment respectively around Mo and Se ions and XANES spectra at L3-edge of Eu ion to identify their valence state. Results from this study demonstrate that Se ions in EuMo6Se8 are in two inequivalent sites and the valency of Eu is divalent.
關鍵字Chevrel phase compounds; Chalcogenides; X-ray absorption spectroscopy; Eu valence
語言英文
ISSN1040-7278; 1572-8862
期刊性質
收錄於SCI
產學合作
通訊作者K. Asokan
審稿制度
國別美國
公開徵稿
出版型式紙本
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