CU K-EDGE POLARIZED X-RAY-ABSORPTION NEAR-EDGE STRUCTURE OF BI2CASR2CU2O8
文献类型：期刊论文
| 作者 | BIANCONI, A ; LI, CX ; CAMPANELLA, F ; DELLALONGA, S ; PETTITI, I ; POMPA, M ; TURTU, S ; UDRON, D |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 1991 |
| 卷号 | 44期号:9页码:4560 |
| 关键词 | FERMI-LIQUID STATES TO 37-A PHASES ELECTRONIC-STRUCTURE SUPERCONDUCTING CHARACTER MODULATED STRUCTURE HOLE CONCENTRATION BAND-STRUCTURE ESR ANALYSIS O SYSTEMS TC |
| ISSN号 | 0163-1829 |
| 通讯作者 | BIANCONI, A: UNIV ROME LA SAPIENZA,DIPARTMENTO FIS,I-00185 ROME,ITALY. |
| 中文摘要 | The linearly polarized Cu K-edge x-ray-absorption near-edge structure (XANES) of Bi2Sr2CaCu2O8+delta (Bi 2:2:1:2) has been measured, and the spectra are interpreted by the multiple-scattering approach in real space. The polarized spectra can be predicted in terms of a one-electron dipole (DELTA-l = +1) transition Cu 1s --> epsilon-p, probing the unoccupied p-like (l = 1) density of states projected on the Cu site with orbital angular momentum m(l) = 0 in the E parallel-to z spectra, and the m(l) = 1 in the E perpendicular-to c spectra. Therefore we show that the electronic structure of the high-energy conduction bands, beyond the Cu 3d band, are well described in terms of the one-electron approximation. Final-state effects induced by the core hole have been studied and calculated. A satellite 7 eV above the main K-XANES peak in both polarizations is shown to be a multielectron shake-up excitation, and it is enhanced going into the insulating phase. Structural information on the copper site in Bi2Sr2CaCu2O8+delta, and in Bi2Sr2YCu2O8+delta has been extracted from XANES spectra, providing evidence for the decrease of the Cu-O distance in the metallic phase. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/35536]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | BIANCONI, A,LI, CX,CAMPANELLA, F,et al. CU K-EDGE POLARIZED X-RAY-ABSORPTION NEAR-EDGE STRUCTURE OF BI2CASR2CU2O8[J]. PHYSICAL REVIEW B,1991,44(9):4560. |
| APA | BIANCONI, A.,LI, CX.,CAMPANELLA, F.,DELLALONGA, S.,PETTITI, I.,...&UDRON, D.(1991).CU K-EDGE POLARIZED X-RAY-ABSORPTION NEAR-EDGE STRUCTURE OF BI2CASR2CU2O8.PHYSICAL REVIEW B,44(9),4560. |
| MLA | BIANCONI, A,et al."CU K-EDGE POLARIZED X-RAY-ABSORPTION NEAR-EDGE STRUCTURE OF BI2CASR2CU2O8".PHYSICAL REVIEW B 44.9(1991):4560. |
入库方式： OAI收割
来源：物理研究所
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