Silicon nano-ribbons on Ag(110): a computational investigation

被引：64

作者：

Kara, Abdelkader ^{[1
,2
]}

Vizzini, Sebastien ^{[3
]}

Leandri, Cristel ^{[3
]}

Ealet, Benedicte ^{[3
]}

Oughaddou, Hamid ^{[2
,4
]}

Aufray, Bernard ^{[3
]}

Lelay, Guy ^{[3
]}

机构：

[1] Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA

[2] Univ Cergy Pontoise, LAMAp, F-95011 Cergy Pontoise, France

[3] CINaM CNRS, F-13288 Marseille, France

[4] CEA, IRAMIS, SPCSI, F-91191 Gif Sur Yvette, France

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2010年 / 22卷 / 04期

关键词：

TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET; SURFACE ALLOY; AES-LEED; GROWTH; STM; NANOWIRES; AG(001); METALS;

D O I：

10.1088/0953-8984/22/4/045004

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report results of a computational investigation, based on density functional theory, of silicon self-assembled nano-ribbons (Si NRs) on Ag(110). These NRs present a honeycomb-like structure arched on the substrate and forming a closed-packed structure. The calculated STM images match the experimental ones, hinting to a possible new Si structure, mediated by the Ag substrate. The observed new electronic states near the Fermi level were reproduced by the calculations and attributed to a confinement/hybridization tandem.

引用

页数：5

共 23 条

[1] THE ATOMIC-STRUCTURE OF ALLOY SURFACES AND SURFACE ALLOYS [J].