Abstract
A mechanism of self-assembly of metallic nanostructures on a quantum-modulated flat Pb(111) thin film with patterned Si(111) substrate is proposed based on recent experimental observations [S. M. Binz, M. Hupalo, and M. C. Tringides, Phys. Rev. B 78, 193407 (2008)] which indicates that because of quantum size effects (QSE), the buried steps act as real steps on surfaces. This intriguing feature offers a potential pathway for self-assembly of functional metallic nanostructures, e.g., nanowires on flat Pb(111) films with designed patterned Si(111) surface as substrate, where QSE can be controlled artificially. The growth conditions for nanowires on a designed Pb(111)/Si(111) substrate is explored by kinetic Monte Carlo simulations.
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