Evidence for weak electronic correlations in iron pnictides
文献类型：期刊论文
| 作者 | Yang, WL ; Sorini, AP ; Chen, CC ; Moritz, B ; Lee, WS ; Vernay, F ; Olalde-Velasco, P ; Denlinger, JD ; Delley, B ; Chu, JH ; Analytis, JG ; Fisher, IR ; Ren, ZA ; Yang, J ; Lu, W ; Zhao, ZX ; van den Brink, J ; Hussain, Z ; Shen, ZX ; Devereaux, TP |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2009 |
| 卷号 | 80期号:1 |
| 关键词 | X-RAY-ABSORPTION TRANSITION-METAL COMPOUNDS SUM-RULES SCATTERING SPECTRA FE |
| ISSN号 | 1098-0121 |
| 通讯作者 | Yang, WL: Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. |
| 中文摘要 | Using x-ray absorption (XAS) and resonant inelastic x-ray scattering (RIXS), charge dynamics at and near the Fe L edges is investigated in Fe-pnictide materials and contrasted to that measured in other Fe compounds. It is shown that the XAS and RIXS spectra for 122 and 1111 Fe pnictides are each qualitatively similar to Fe metal. Cluster diagonalization, multiplet, and density-functional calculations show that Coulomb correlations are much smaller than in the cuprates, highlighting the role of Fe metallicity and strong covalency in these materials. The best agreement with experiment is obtained using Hubbard parameters U less than or similar to 2 eV and J approximate to 0.8 eV. |
| 收录类别 | SCI |
| 资助信息 | Office of Science of the U. S. Department of Energy (DOE) [DE-AC02-76SF00515, DE-FG02-08ER4650, DE-AC02-05CH11231]; Stichting voor Fundamenteel Onderzoek der Materie (FOM); CONTACyT, Mexico |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/37620]  |
| 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 | Yang, WL,Sorini, AP,Chen, CC,et al. Evidence for weak electronic correlations in iron pnictides[J]. PHYSICAL REVIEW B,2009,80(1). |
| APA | Yang, WL.,Sorini, AP.,Chen, CC.,Moritz, B.,Lee, WS.,...&Devereaux, TP.(2009).Evidence for weak electronic correlations in iron pnictides.PHYSICAL REVIEW B,80(1). |
| MLA | Yang, WL,et al."Evidence for weak electronic correlations in iron pnictides".PHYSICAL REVIEW B 80.1(2009). |
入库方式： OAI收割
来源：物理研究所
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