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 en
ISSN 1040-7278; 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 USA
公開徵稿
出版型式 紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/72606 )

機構典藏連結