| 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 ) |
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