Self-assembly, structure, and electronic properties of a quasiperiodic lead monolayer

TitleSelf-assembly, structure, and electronic properties of a quasiperiodic lead monolayer
Publication TypeJournal Article
Year of Publication2008
AuthorsLedieu J, Leung L, Wearing LH, McGrath R, Lograsso TA, Wu D, Fournee V
Journal TitlePhysical Review B
Volume77
Pages073409
Date PublishedFeb
Type of ArticleArticle
ISBN Number1098-0121
Accession NumberISI:000253764200032
Keywordsal, atoms, crystalline
Abstract

A quasiperiodic Pb monolayer has been formed on the fivefold surface of the Al-Pd-Mn quasicrystal. Growth of the monolayer proceeds via self-assembly of an interconnected network of pentagonal Pb stars, which are shown to be tau inflated compared to similar structural elements of the quasiperiodic substrate. Measurements of the electronic structure of the system using scanning tunneling spectroscopy and ultraviolet photoemission spectroscopy reveal that the Pb monolayer displays a pseudogap at the Fermi level which is directly related to its quasiperiodic structure.

DOI10.1103/PhysRevB.77.073409
Alternate JournalPhys. Rev. B