Academic Journals Database
Disseminating quality controlled scientific knowledge

Theoretical Investigations into Self-Organized Ordered Metallic Semi-Clusters Arrays on Metallic Substrate

ADD TO MY LIST
 
Author(s): Wang Xiao-Chun | Zhao Han-Yue | Chen Nan-Xian | Zhang Yong

Journal: Nanoscale Research Letters
ISSN 1931-7573

Volume: 5;
Issue: 6;
Start page: 1020;
Date: 2010;
Original page

Keywords: Self-organized | Template | Interface potential | Molecular dynamics | First-principles calculation

ABSTRACT
Abstract Using the energy minimization calculations based on an interfacial potential and a first-principles total energy method, respectively, we show that (2 × 2)/(3 × 3) Pb/Cu(111) system is a stable structure among all the [(n − 1) × (n − 1)]/(n × n) Pb/Cu(111) (n = 2, 3,…, 12) structures. The electronic structure calculations indicate that self-organized ordered Pb semi-clusters arrays are formed on the first Pb monolayer of (2 × 2)/(3 × 3) Pb/Cu(111), which is due to a strain-release effect induced by the inherent misfits. The Pb semi-clusters structure can generate selective adsorption of atoms of semiconductor materials (e.g., Ge) around the semi-clusters, therefore, can be used as a template for the growth of nanoscale structures with a very short periodic length (7.67 Å).
Save time & money - Smart Internet Solutions     

Tango Jona
Tangokurs Rapperswil-Jona