Quasi one-dimensional electronic states of alkali metal chains assembled on the InAs(110) surface

Luca Gavioli, Maria Grazia Betti, Enrica Spiller, V. Corradini, M. G. Betti, C. Mariani

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

Abstract

We investigate the electronic band dispersion associated to alkali metal chains assembled on the InAs(110) surface by angular-resolved photoelectron spectroscopy. The Cs and K atomic chains induce occupied electronic states with twofold symmetry and narrow bandwidth along the chain direction, showing a quasi-one-dimensional electronic character. The insulating character and the narrow bandwidth of the alkali-induced state suggest the relevance of electron correlation effects in the description of alkali-induced electronic-state dispersion.
Lingua originaleEnglish
pagine (da-a)254-260
Numero di pagine7
RivistaEurophysics Letters
Volume2004
DOI
Stato di pubblicazionePubblicato - 2004

Keywords

  • alkali metals
  • one dimensional structures

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