Quasicrystalline Electronic States of a One-Dimensionally Modulated Ag Film

P Moras, Wolfgang Theis, L Ferrari, S Gardonio, J Fujii, K Horn, C Carbone

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Ag films on GaAs(110) exhibit a one-dimensional quasiperiodic modulation, resulting in a Fibonacci sequence of parallel stripes with two different widths. Valence level photoemission shows that the Ag electronic states acquire a unique character along the quasiperiodic direction, distinctively manifested by a hierarchy of energy level replicas and avoided crossings at characteristic intervals in reciprocal space. These observations demonstrate the strong influence of the one-dimensional quasiperiodic potential on the Ag film states.
Original languageEnglish
Pages (from-to)156401
Number of pages1
JournalPhysical Review Letters
Volume96
Issue number15
Early online date1 Apr 2006
DOIs
Publication statusPublished - 1 Apr 2006

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