期刊論文
| 學年 | 100 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2011-10-17 |
| 作品名稱 | dd excitations in three-dimensional q-Space: A nonresonant inelastic X-ray scattering study on NiO |
| 作品名稱（其他語言） | |
| 著者 | N. Hiraoka,; M. Suzuki; K. D. Tsuei; H. Ishii; Y. Q. Cai; M. W. Haverkort; C. C. Lee; W. Ku |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Europhysics Letters(EPL) 96(3), 37007 |
| 摘要 | We have studied the dd excitations in NiO over three-dimensional momentum (q) space using nonresonant inelastic X-ray scattering. In addition to the previously reported peaks at 1.7 and 3.0 eV, another peak is found at 1.0 eV, with a dramatically different intensity distribution in momentum space.Contrary to the other two peaks that form oval structures maximizing at [111] directions, the 1.0 eV peak displays appreciable intensity along low-symmetry axes near [311] and [210], but vanishes in the three principal axes [100], [110], and [111], indicating a significant difference in the exciton wave function.We find good agreement between the experimental data and two state-of-the-art theories, advocating investigating other strongly correlated materials with similar experimental/theoretical approaches. |
| 關鍵字 | |
| 語言 | en |
| ISSN | |
| 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 | GBR |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/117383 ) |