期刊論文
| 學年 | 95 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2007-07-10 |
| 作品名稱 | Nonresonant Inelastic X-Ray Scattering and Energy-Resolved Wannier Function Investigation of d-d Excitations in NiO and CoO |
| 作品名稱（其他語言） | |
| 著者 | B. C. Larson; Wei Ku; J. Z. Tischler; Chi-Cheng Lee; O. D. Restrepo; A. G. Eguiluz; P. Zschack; K. D. Finkelstein |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Phys. Rev. Lett. 99(2), 026401 |
| 摘要 | Nonresonant inelastic x-ray scattering measurements on NiO and CoO show that strong dipole-forbidden d−d excitations appear within the Mott gap at large wave vectors. These dominant excitations are highly anisotropic, and have [001] nodal directions for NiO. Theoretical analyses based on a novel, energy-resolved Wannier function (within the local density approximation+HubbardU) show that the anisotropy reflects the local exciton wave functions and local point-group symmetry. The sensitivity to weak symmetry breaking in particle-hole wave functions suggests a wide application to strongly correlated systems. |
| 關鍵字 | |
| 語言 | en_US |
| 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 | USA |
| 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/987654321/117388 ) |