| Metal-Nonmetal Transition in Rubidium Tungsten Bronze RbxWOy | |
|---|---|
| 學年 | 91 |
| 學期 | 1 |
| 出版（發表）日期 | 2002-12-01 |
| 作品名稱 | Metal-Nonmetal Transition in Rubidium Tungsten Bronze RbxWOy |
| 作品名稱（其他語言） | |
| 著者 | Ting, L. C.; Hsieh, H. H.; Huang, C. T.; Wang, C. B.; Ling, D. C.; Huang, K. J.; Chang, S. J.; Kang, H. H.; Chien, F. Z.; Hor, P. H. |
| 單位 | 淡江大學物理學系 |
| 出版者 | New York: Kluwer Academic Publishers-Plenum Publishers |
| 著錄名稱、卷期、頁數 | Journal of Superconductivity 15(6), pp.675-678 |
| 摘要 | An oxygen concentration dependent metal–nonmetal (MN) transition was observed for Rb0.23WO y with 2.80 < y < 3.08. As 2.80 < y < 3.0, the room temperature resistivity (ρRT) of the Rb0.23WO y is about 5 × 10−4Ω cm. While in the case of y > 3.04, the ρRT of the Rb0.23WO y exhibits a four orders of magnitude increase with a value of 5 Ω cm. Correspondingly, the lattice constant along c-direction slightly shortens as oxygen concentration increases from 2.80 to 3.08. The observed results suggest that the hybridization between W 5d (t2g) and O 2p orbitals might be responsible for the MN transition. In addition, similar measurements were performed for Rb x WO3.04 and Rb x WO2.85 with 0.19 < x < 0.27. No rubidium concentration dependent MN transition was observed, indicating the electronic structure of the host WO y is not modified significantly by varying the soluble rubidium concentration. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 1572-9605 1557-1939 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 是 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | 電子版 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/79941 ) |
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