Resonance in the electron-doped high-transition-temperature superconductor Pr0.88LaCe0.12CuO4-delta
文献类型：期刊论文
| 作者 | Wilson, SD ; Dai, PC ; Li, SL ; Chi, SX ; Kang, HJ ; Lynn, JW |
| 刊名 | NATURE
 |
| 出版日期 | 2006 |
| 卷号 | 442期号:7098页码:59 |
| 关键词 | MAGNETIC EXCITATIONS SPIN EXCITATION CUPRATE SUPERCONDUCTORS NEUTRON-SCATTERING BI2SR2CACU2O8+DELTA YBA2CU3O6+X SPECTRUM STRIPES MODE |
| ISSN号 | 0028-0836 |
| 通讯作者 | Dai, P (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. |
| 中文摘要 | In conventional superconductors, the interaction that pairs the electrons to form the superconducting state is mediated by lattice vibrations(1) (phonons). In high-transition-temperature (high-T-c) copper oxides, it is generally believed that magnetic excitations might play a fundamental role in the superconducting mechanism because superconductivity occurs when mobile 'electrons' or 'holes' are doped into the antiferromagnetic parent compounds(2). Indeed, a sharp magnetic excitation termed 'resonance' has been observed by neutron scattering in a number of hole-doped materials(3-11). The resonance is intimately related to superconductivity(12), and its interaction with charged quasi-particles observed by photoemission(13,14), optical conductivity(15), and tunnelling(16) suggests that it might play a part similar to that of phonons in conventional superconductors. The relevance of the resonance to high-T-c superconductivity, however, has been in doubt because so far it has been found only in hole-doped materials(17). Here we report the discovery of the resonance in electron-doped superconducting Pr0.88LaCe0.12CuO4-delta (T-c = 24 K). We find that the resonance energy (E-r) is proportional to T-c via E-r approximate to 5.8k(B)T(c) for all high-T-c superconductors irrespective of electron- or hole-doping. Our results demonstrate that the resonance is a fundamental property of the superconducting copper oxides and therefore must be essential in the mechanism of superconductivity. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2014-02-20 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57861]  |
| 专题 | 物理研究所_所内人员在其他单位发表论文题录信息_所内人员在其他单位发表论文题录信息_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wilson, SD,Dai, PC,Li, SL,et al. Resonance in the electron-doped high-transition-temperature superconductor Pr0.88LaCe0.12CuO4-delta[J]. NATURE,2006,442(7098):59. |
| APA | Wilson, SD,Dai, PC,Li, SL,Chi, SX,Kang, HJ,&Lynn, JW.(2006).Resonance in the electron-doped high-transition-temperature superconductor Pr0.88LaCe0.12CuO4-delta.NATURE,442(7098),59. |
| MLA | Wilson, SD,et al."Resonance in the electron-doped high-transition-temperature superconductor Pr0.88LaCe0.12CuO4-delta".NATURE 442.7098(2006):59. |
入库方式： OAI收割
来源：物理研究所
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