Observation of ferromagnetic correlation in phase-separated Cu-rich La2CuO4.003
文献类型:期刊论文
作者 | Dong, XL ; Zhao, BR ; Dong, ZF ; Zhao, ZX ; Huang, WW ; Zhang, YZ ; Wu, F ; Chen, H ; Xu, B ; Peng, LM ; Duan, XF ; Zhao, LH |
刊名 | SOLID STATE COMMUNICATIONS
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出版日期 | 1998 |
卷号 | 108期号:12页码:949 |
关键词 | SUPERCONDUCTING LA2CUO4+DELTA ELECTROCHEMICAL OXIDATION TEMPERATURE SUPERCONDUCTORS SPIN FLUCTUATIONS ANTIFERROMAGNETS LATTICE |
ISSN号 | 0038-1098 |
通讯作者 | Zhao, BR (reprint author), Chinese Acad Sci, Natl Lab Superconduct, Inst Phys, Beijing 100080, Peoples R China. |
中文摘要 | Angle-resolved photoemission near the (K) over bar point in the surface Brillouin zone (SBZ) reveals the existence of a state 2.8 eV below the Fermi level which has the properties of an interface state. For Fe coverage Theta < 0.5 ml, the intensity of the surface state at the (K) over bar point in the SBZ decays with Theta increasing. For Theta > 0.5 mi, the feature gets stronger again and saturates at Theta = 1.0-1.3 ml. After subtracting the contribution from the surface state of clean Cu{1 1 1}, the feature grows in intensity with Theta increasing. For larger coverage (Theta > 3-4 ml), the intensity of the feature remains nearly constant relative to that of the bulk Cu features. Its binding energy is independent of the photoelectrom momentum perpendicular to the surface. The energy dispersion curve of the interface state lies in the gap of the projected bulk Cu band structure near the (K) over bar point. We conclude that the -2.8 eV feature comes from the interface between Fe overlayer and Cu{1 1 1} substrate. (C) 1998 Elsevier Science Ltd. All rights reserved. |
收录类别 | SCI |
语种 | 英语 |
公开日期 | 2013-09-24 |
源URL | [http://ir.iphy.ac.cn/handle/311004/50148] ![]() |
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 | Dong, XL,Zhao, BR,Dong, ZF,et al. Observation of ferromagnetic correlation in phase-separated Cu-rich La2CuO4.003[J]. SOLID STATE COMMUNICATIONS,1998,108(12):949. |
APA | Dong, XL.,Zhao, BR.,Dong, ZF.,Zhao, ZX.,Huang, WW.,...&Zhao, LH.(1998).Observation of ferromagnetic correlation in phase-separated Cu-rich La2CuO4.003.SOLID STATE COMMUNICATIONS,108(12),949. |
MLA | Dong, XL,et al."Observation of ferromagnetic correlation in phase-separated Cu-rich La2CuO4.003".SOLID STATE COMMUNICATIONS 108.12(1998):949. |
入库方式: OAI收割
来源:物理研究所
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