Quasiparticle dynamics in the vicinity of metal-insulator phase transition in NaxCoO2
文献类型：期刊论文
| 作者 | Qian, D ; Wray, L ; Hsieh, D ; Wu, D ; Luo, JL ; Wang, NL ; Kuprin, A ; Fedorov, A ; Cava, RJ ; Viciu, L ; Hasan, MZ |
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2006 |
| 卷号 | 96期号:4 |
| 关键词 | ELECTRONIC-STRUCTURE FERMI-SURFACE |
| ISSN号 | 0031-9007 |
| 通讯作者 | Qian, D (reprint author), Princeton Univ, Dept Phys, Joseph Henry Labs Phys, Princeton, NJ 08544 USA. |
| 中文摘要 | Layered cobaltates embody novel realizations of correlated matter on a spin-1/2 triangular lattice. We report a high-resolution systematic photoemission study of the insulating cobaltates. The observation of a single-particle gap opening and band folding provides direct evidence of anisotropic particle-hole instability on the Fermi surface due to its unique topology. Overlap of the measured Fermi surface is observed with the root 3 x root 3 charge-order Brillouin zone near x = 1/3 but not at x = 1/2 where the insulating transition is actually observed. Unlike conventional density waves, charge stripes, or band insulators, the onset of the gap depends on the quasiparticle's quantum coherence which is found to occur well below the disorder-order symmetry breaking temperature of the crystal ( the first known example of its kind). |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51796]  |
| 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 | Qian, D,Wray, L,Hsieh, D,et al. Quasiparticle dynamics in the vicinity of metal-insulator phase transition in NaxCoO2[J]. PHYSICAL REVIEW LETTERS,2006,96(4). |
| APA | Qian, D.,Wray, L.,Hsieh, D.,Wu, D.,Luo, JL.,...&Hasan, MZ.(2006).Quasiparticle dynamics in the vicinity of metal-insulator phase transition in NaxCoO2.PHYSICAL REVIEW LETTERS,96(4). |
| MLA | Qian, D,et al."Quasiparticle dynamics in the vicinity of metal-insulator phase transition in NaxCoO2".PHYSICAL REVIEW LETTERS 96.4(2006). |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。