Change of electronic structure in Ca2RuO4 induced by orbital ordering
文献类型：期刊论文
| 作者 | Jung, JH ; Fang, Z ; He, JP ; Kaneko, Y ; Okimoto, Y ; Tokura, Y |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2003 |
| 卷号 | 91期号:5 |
| 关键词 | INSULATOR-TRANSITION MOTT TRANSITION METAL SR2RUO4 CA2-XSRXRUO4 CRYSTAL OXIDES STATE |
| ISSN号 | 0031-9007 |
| 通讯作者 | Jung, JH: Japan Sci & Technol Corp, ERATO, Spin Superstruct Project, Tsukuba, Ibaraki 3058562, Japan. |
| 中文摘要 | Optical conductivity spectra sigma(omega) were used to investigate the effect of orbital ordering on the electronic structure of Ca2RuO4. Our LDA+U calculation predicts Ru 4d(xy) ferro-orbital ordering at the ground state, and well explains the present sigma(omega) as well as the reported O 1s x-ray absorption spectra. Variation of temperature (T) causes a large change of spectral weight over several eV as well as collapse of a charge gap accompanied by elongation of the c-axis Ru-O bond length. These results clearly indicate that the d(xy) orbital ordering plays a crucial role in the metal-insulator transition and the T-dependent electronic structure on a large energy scale. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/34553]  |
| 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 | Jung, JH,Fang, Z,He, JP,et al. Change of electronic structure in Ca2RuO4 induced by orbital ordering[J]. PHYSICAL REVIEW LETTERS,2003,91(5). |
| APA | Jung, JH,Fang, Z,He, JP,Kaneko, Y,Okimoto, Y,&Tokura, Y.(2003).Change of electronic structure in Ca2RuO4 induced by orbital ordering.PHYSICAL REVIEW LETTERS,91(5). |
| MLA | Jung, JH,et al."Change of electronic structure in Ca2RuO4 induced by orbital ordering".PHYSICAL REVIEW LETTERS 91.5(2003). |
入库方式： OAI收割
来源：物理研究所
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