Surface state at the (K)over-bar point of the surface brillouin zone on Cu{111}
文献类型：期刊论文
| 作者 | Yang Y(杨言) ; Liu FQ(刘凤琴); Kui RX(奎热西); Qian HJ(钱海杰); Yang, Y; Wu, SC; Liu, FQ; Ibrahim, K; Qian, HJ; Lu, SH
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| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 1996 |
| 卷号 | 54期号:7页码:5092-5096 |
| 通讯作者 | BEIJING UNIV,DEPT PHYS,BEIJING 100871,PEOPLES R CHINA ; SUNY STONY BROOK,DEPT MAT SCI & ENGN,STONY BROOK,NY 11794 |
| 英文摘要 | The electronic structure of a Cu{111} surface along the (K) over bar-Gamma line of the surface Brillouin zone (SBZ) is studied with synchrotron-radiation angle-resolved photoemission spectroscopy. The experiments reveal the presence of an electron state about 3 eV below the Fermi level near the (K) over bar point of the SBZ. This state has all the conventional attributes of a surface state, namely, (1) its binding energy is independent of the perpendicular photoelectron momentum; (2) its energy-dispersion curve lies in an absolute gap of the projected bulk band structure near the (K) over bar point; and (3) its emission intensity is sensitive to foreign atoms (cobalt, in the present experiments). Hence, this state is interpreted in terms of a localized d-electron Tamm-type surface state. However, its intensity and its energy position are hardly affected by the adsorption of 3500 L, [1 L = 1 x 10(-6) Torr sec] of oxygen. This unconventional behavior was compared to that of the sp-electron Shockley surface state at the Gamma point (binding energy 0.4 eV below the Fermi level), which exhibits the opposite effect with regard to the adsorption of cobalt or oxygen. A tentative explanation of this interesting phenomenon is presented. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Condensed Matter |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:A1996VE48800101 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240012]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Yang Y,Liu FQ,Kui RX,et al. Surface state at the (K)over-bar point of the surface brillouin zone on Cu{111}[J]. PHYSICAL REVIEW B,1996,54(7):5092-5096. |
| APA | 杨言.,刘凤琴.,奎热西.,钱海杰.,Yang, Y.,...&Jona, F.(1996).Surface state at the (K)over-bar point of the surface brillouin zone on Cu{111}.PHYSICAL REVIEW B,54(7),5092-5096. |
| MLA | 杨言,et al."Surface state at the (K)over-bar point of the surface brillouin zone on Cu{111}".PHYSICAL REVIEW B 54.7(1996):5092-5096. |
入库方式： OAI收割
来源：高能物理研究所
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