Pseudogap Ground State and Its Doping Evolution in Bi2Sr2-xLaxCuO6+delta: Removing the Superconducting State by the Application of Very High Magnetic Fields
文献类型：期刊论文
| 作者 | Zheng, GQ ; Kawasaki, S ; Lin, CT ; Kuhns, PL ; Reyes, AP |
| 刊名 | JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
 |
| 出版日期 | 2012 |
| 卷号 | 25期号:5页码:1249 |
| ISSN号 | 1557-1939 |
| 通讯作者 | Zheng, GQ (reprint author), Okayama Univ, Dept Phys, Okayama 7008530, Japan. |
| 中文摘要 | We present results for the pseudogap ground state and its doping evolution in single-layered copper-oxide Bi2Sr2-x La (x) CuO6+delta . We apply very high magnetic fields up to 44 T to remove the superconducting state and reveal the hidden low temperature (T) normal state. Through Cu-63-NMR Knight shift and spin-lattice relaxation rate measurements, we find that there remains a finite density of states (DOS) at the Fermi level in the zero-T limit when the superconductivity is removed, which indicates that the pseudogap ground state is a metallic state with a finite volume of Fermi surface. The residual DOS in the pseudogap ground state decreases with decreasing doping (increasing x), but remains quite large even at the vicinity of the magnetically ordered phase of xa parts per thousand yen 0.8. The result indicates that the superconductivity emerges from the remaining Fermi surface and coexists with the pseudogap. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/51575]  |
| 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 | Zheng, GQ,Kawasaki, S,Lin, CT,et al. Pseudogap Ground State and Its Doping Evolution in Bi2Sr2-xLaxCuO6+delta: Removing the Superconducting State by the Application of Very High Magnetic Fields[J]. JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM,2012,25(5):1249. |
| APA | Zheng, GQ,Kawasaki, S,Lin, CT,Kuhns, PL,&Reyes, AP.(2012).Pseudogap Ground State and Its Doping Evolution in Bi2Sr2-xLaxCuO6+delta: Removing the Superconducting State by the Application of Very High Magnetic Fields.JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM,25(5),1249. |
| MLA | Zheng, GQ,et al."Pseudogap Ground State and Its Doping Evolution in Bi2Sr2-xLaxCuO6+delta: Removing the Superconducting State by the Application of Very High Magnetic Fields".JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM 25.5(2012):1249. |
入库方式： OAI收割
来源：物理研究所
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