Scanning tunneling microscopy (STM) and spectroscopy (STS) are used to study electronic states at the edges of the circular pits on the hydrogen-etched graphite surface. The edge surface state revealed by tunneling spectroscopy appears as the maximum of the local density of states (LDOS) in the energy range of 90-250 meV above the Fermi level. The dispersion of the energy state is explained by the band broadening in AB stacked H-terminated graphite. The magnitude of the edge state decreases with the distance from the pit edge as theoretically predicted.

Original languageEnglish
Pages (from-to)508-514
Number of pages7
JournalApplied Surface Science
Volume161
Issue number3
DOIs
StatePublished - 2 Jul 2000

    Scopus subject areas

  • Surfaces, Coatings and Films

ID: 36307361