Ag(111) electron band structure and channeling by VLEED

被引：12

作者：

Bartos, I ^{[1
]}

Van Hove, MA

Chung, WF

He, Z

Altman, MS

机构：

[1] Acad Sci Czech Republ, Inst Phys, Prague, Czech Republic

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Sci Mat, Berkeley, CA 94720 USA

[3] Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong

来源：

SURFACE SCIENCE | 1998年 / 402卷 / 1-3期

基金：

美国国家科学基金会;

关键词：

electron band structure; electron channeling; silver; very low electron energy diffraction (VLEED);

D O I：

10.1016/S0039-6028(97)00957-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Very-low energy electron diffraction (VLEED) provides useful evidence about the electron band structure of crystal surfaces above the vacuum level. The intensity of the normally incident beam has been measured in detail for Ag(111) in the range 5-35 eV by a low-energy electron microscope. A sharp resonance, as found for Cu(111) [I. Bartos, M.A. Van Hove, M.S. Altman, Surf. Sci. 352-354 (1996) 660] below the Bragg peak, is connected with the local energy band gap. Good agreement of the I-V curves with theoretical calculations is obtained (in particular the small width of the resonance) when electron channeling along the surface is taken into account. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：697 / 700

页数：4

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