期刊論文
| 學年 | 76 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 1987-09-01 |
| 作品名稱 | High-temperature superconductivity in the presence of O 2p-Cu 3d holes: A spectroscopic study |
| 作品名稱（其他語言） | |
| 著者 | Horn, S.; Cai, J.; Shaheen, S. A.; Jeon, Y.; Croft, M.; Chang, C. L.; den Boerand, M. L. |
| 單位 | 淡江大學物理學系 |
| 出版者 | College Park: American Physical Society |
| 著錄名稱、卷期、頁數 | Physical Review B (Condensed Matter) 36(7), pp.3895-3898 |
| 摘要 | We report core-level spectroscopic measurements of several cuprate perovskites comparing those which exhibit superconductivity above 90 K to others which do not. Both x-ray photoemission and x-ray absorption results show that in the former Cu is more oxidized, as in CuO (nominally Cu2+), than in the latter. Trivalent Cu is clearly excluded. The O 1s core level is at higher binding energy in the superconductors, implying the presence of O 2p holes. The rare-earth valence in Ce- and Pr-based perovskites is more than 3+, apparently related to their failure to superconduct. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 0163-1829 1095-3795 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | 紙本 電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27760 ) |