Document Type

Article

Publication Date

6-5-2009

Journal or Book Title

Physical Review B

Volume

79

Issue

24

First Page

245405

DOI

10.1103/PhysRevB.79.245405

Abstract

We report on the growth of Pb thin films deposited either on the Al-rich fivefold surface of the icosahedral Al-Cu-Fe quasicrystal or on the (111) surface of fcc Al. On the quasicrystalline substrate, the diffusion length of Pb adatoms is short due to heterogeneous nucleation that enforces a quasiperiodic structure in the monolayer. On the Al(111) substrate, the mobility of Pb adatoms is high and the interaction with the substrate is flatter, leading to the formation of a (√31×√31)R8.95° higher-order commensurate structure. This moiré structure propagates up to the highest coverages investigated.

Comments

This article is from Physical Review B 79 (2009): 245405, doi:10.1103/PhysRevB.79.245405.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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