Campus Units

Mathematics, Physics and Astronomy, Ames Laboratory

Document Type

Article

Publication Version

Published Version

Publication Date

3-2009

Journal or Book Title

Physical Review B

Volume

79

Issue

11

First Page

113404-1

Last Page

113404-4

DOI

10.1103/PhysRevB.79.113404

Abstract

Scanning tunneling microscopy experiments reveal that small Pb islands with unstable heights, e.g., four layers, on a Si(111) surface decay during coarsening, whereas large islands do not decay but grow to a stable height. This bifurcation in evolution is analyzed by incorporating quantum size effects into theoretical models for island growth dynamics with appropriate geometries. The effective energy barrier for Pb atoms to reach the top of four-layer islands is estimated at about 0.26 eV.

Comments

This article is from Physical Review B 79 (2009): 113404, doi:10.1103/PhysRevB.79.113404 Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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