Antiferromagnetic order as the competing ground state in electron-doped Nd1.85Ce0.15CuO4
文献类型：期刊论文
| 作者 | Kang, HJ ; Dai, PC ; Lynn, JW ; Matsuura, M ; Thompson, JR ; Zhang, SC ; Argyriou, DN ; Onose, Y ; Tokura, Y |
| 刊名 | NATURE
 |
| 出版日期 | 2003 |
| 卷号 | 423期号:6939页码:522 |
| 关键词 | HIGH-TEMPERATURE SUPERCONDUCTOR T-C SUPERCONDUCTIVITY MAGNETIC-FIELD SINGLE-CRYSTALS VORTEX CORES ND2-XCEXCUO4 ENHANCEMENT DEPENDENCE SYMMETRY SPINS |
| ISSN号 | 0028-0836 |
| 通讯作者 | Dai, PC (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA. |
| 中文摘要 | Superconductivity in the high-transition-temperature (high-T-c) copper oxides competes with other possible ground states(1),(2). The physical explanation for superconductivity can be constrained by determining the nature of the closest competing ground state, and establishing if that state is universal among the high-T-c materials. Antiferromagnetism has been theoretically predicted(3,4) to be the competing ground state. A competing ground state is revealed when superconductivity is destroyed by the application of a magnetic field, and antiferromagnetism has been observed in hole-doped materials under the influence of modest fields(5-12). None of the previous experiments have revealed the quantum phase transition from the superconducting state to the antiferromagnetic state, because they failed to reach the upper critical field B-c2. Here we report the results of transport and neutron-scattering experiments on electron-doped Nd1.85Ce0.15CuO4 (refs 13, 14), where B-c2 can be reached(15). The applied field reveals a static, commensurate, anomalously conducting long-range ordered antiferromagnetic state, in which the induced moment scales approximately linearly with the field strength until it saturates at B-c2. This and previous experiments on the hole-doped materials therefore establishes antiferromagnetic order as a competing ground state in the high-T-c copper oxide materials, irrespective of electron or hole doping. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2014-02-20 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/57879]  |
| 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 | Kang, HJ,Dai, PC,Lynn, JW,et al. Antiferromagnetic order as the competing ground state in electron-doped Nd1.85Ce0.15CuO4[J]. NATURE,2003,423(6939):522. |
| APA | Kang, HJ.,Dai, PC.,Lynn, JW.,Matsuura, M.,Thompson, JR.,...&Tokura, Y.(2003).Antiferromagnetic order as the competing ground state in electron-doped Nd1.85Ce0.15CuO4.NATURE,423(6939),522. |
| MLA | Kang, HJ,et al."Antiferromagnetic order as the competing ground state in electron-doped Nd1.85Ce0.15CuO4".NATURE 423.6939(2003):522. |
入库方式： OAI收割
来源：物理研究所
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