Electronic structure and electron energy-loss spectra of Sr0.35CoO2
文献类型：期刊论文
| 作者 | Xiao, RJ ; Yang, HX ; Xu, LF ; Zhang, HR ; Shi, YG ; Li, JQ |
| 刊名 | SOLID STATE COMMUNICATIONS
 |
| 出版日期 | 2005 |
| 卷号 | 135期号:11-12页码:687 |
| 关键词 | THERMOELECTRIC PROPERTIES LAYERED COBALTITE SINGLE-CRYSTALS NACO2O4 1ST-PRINCIPLES SPECTROSCOPY OXIDES POWER |
| ISSN号 | 0038-1098 |
| 通讯作者 | Li, JQ: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | The electronic structure of Sr0.35CoO2, structurally analogous to the layered NaxCoO2, has been evaluated using the local spin density approximation (LSDA). We find that evident c-dispersions appear in both the e(g)' and a(1g) Co-derived bands, demonstrating the existence of a notable interplanar interaction in Sr0.35CoO2. The LSDA + U calculation reveals that the electronic structure, in particular the band splitting between the spin-up and spin-down electrons, changes evidently along with the increase of the effective on-site Coulomb interaction U. Analysis of theoretical and experimental electron energy-loss spectra (EELS) for the oxygen K-edge and the Co L-23-edge suggests that the on-site interaction (U) in Sr0.35CoO2 is less than 3 eV which is noticeably weaker than the estimated value (from 5 to 8 eV) in the NaxCoO2 materials. (C) 2005 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/37164]  |
| 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 | Xiao, RJ,Yang, HX,Xu, LF,et al. Electronic structure and electron energy-loss spectra of Sr0.35CoO2[J]. SOLID STATE COMMUNICATIONS,2005,135(11-12):687. |
| APA | Xiao, RJ,Yang, HX,Xu, LF,Zhang, HR,Shi, YG,&Li, JQ.(2005).Electronic structure and electron energy-loss spectra of Sr0.35CoO2.SOLID STATE COMMUNICATIONS,135(11-12),687. |
| MLA | Xiao, RJ,et al."Electronic structure and electron energy-loss spectra of Sr0.35CoO2".SOLID STATE COMMUNICATIONS 135.11-12(2005):687. |
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来源：物理研究所
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