The structural and electronic properties of silicon nanoribbons on Ag(110): A first principles study

被引：32
作者：
Lian, Chao
Ni, Jun [1 ]
机构：
[1] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
来源：
PHYSICA B-CONDENSED MATTER | 2012年 / 407卷 / 24期
基金：
中国国家自然科学基金;
关键词：
Silicon nanoribbons; Structural stability; First principles; INITIO MOLECULAR-DYNAMICS; NANOWIRE BUILDING-BLOCKS; NANOTUBES; GROWTH;
D O I：
10.1016/j.physb.2012.08.039
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have investigated the structures of silicon nanoribbons on Ag(110) using first principles calculations. The armchair silicon nanoribbons (ASiNRs) and zigzag silicon nanoribbons (ZSiNRs) with different widths are analyzed. The formation energy study shows that the ASiNRs with the width of 16 angstrom are the most stable structures. These ASiNRs have the structural parameters same as experimental ones. The simulated scanning tunneling microscope (STM) images of these ASiNRs also agree well with the experimental results. Thus, these ASiNRs are supposed to be the nanoribbons grown in experiment. The electronic structures shows that the ASiNRs are metallic, which is in agreement with the experiments. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：4695 / 4699
页数：5
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