Fermi surface sheet-dependent band splitting in Sr2RuO4 revealed by high-resolution angle-resolved photoemission spectroscopy
文献类型：期刊论文
| 作者 | Liu, SY ; Weng, HM ; Mou, DX ; Zhang, WT ; Wu, QS ; He, JF ; Liu, GD ; Zhao, L ; Liu, HY ; Jia, XW ; Peng, YY ; He, SL ; Dong, XL ; Zhang, J ; Mao, ZQ ; Chen, CT ; Xu, ZY ; Dai, X ; Fang, Z ; Zhou, XJ |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2012 |
| 卷号 | 86期号:16 |
| 关键词 | SUPERCONDUCTOR SR2RUO4 LAYERED PEROVSKITE |
| ISSN号 | 1098-0121 |
| 通讯作者 | Zhou, XJ: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Nalt Lab Superconduct, Beijing 100190, Peoples R China. |
| 中文摘要 | High-resolution angle-resolved photoemission measurements have been carried out on Sr2RuO4. We observe clearly two sets of Fermi surface sheets near the (pi,0)-(0,pi) line, which are most likely attributed to the surface and bulk Fermi surface splitting of the beta band. This is in strong contrast to the nearly null surface and bulk Fermi surface splitting of the alpha band, although both have identical orbital components. Extensive band structure calculations are performed by considering various scenarios, including structural distortion, spin-orbit coupling, and surface ferromagnetism. However, none of them can explain such a qualitative difference of the surface and bulk Fermi surface splitting between the alpha and beta sheets. This unusual behavior points to an unknown order on the surface of Sr2RuO4 that remains to be uncovered. Its revelation will be important for studying and utilizing novel quantum phenomena associated with the surface of Sr2RuO4 as a result of its being a possible p-wave chiral superconductor and a topological superconductor. |
| 收录类别 | SCI |
| 资助信息 | NSFC [11190022, 10734120, 11104339]; MOST of China (973 Program) [2011CB921703]; NSF [DMR-1205469] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/38080]  |
| 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 | Liu, SY,Weng, HM,Mou, DX,et al. Fermi surface sheet-dependent band splitting in Sr2RuO4 revealed by high-resolution angle-resolved photoemission spectroscopy[J]. PHYSICAL REVIEW B,2012,86(16). |
| APA | Liu, SY.,Weng, HM.,Mou, DX.,Zhang, WT.,Wu, QS.,...&Zhou, XJ.(2012).Fermi surface sheet-dependent band splitting in Sr2RuO4 revealed by high-resolution angle-resolved photoemission spectroscopy.PHYSICAL REVIEW B,86(16). |
| MLA | Liu, SY,et al."Fermi surface sheet-dependent band splitting in Sr2RuO4 revealed by high-resolution angle-resolved photoemission spectroscopy".PHYSICAL REVIEW B 86.16(2012). |
入库方式： OAI收割
来源：物理研究所
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