Surface states band structure of Gd-induced one-dimensional chain structure on Si(111) surface measured by angle-resolved photoelectron spectroscopy

Taichi Okuda, Takahide Tohyama, Xiao Dong Ma, Takanori Wakita, Ayumi Harasawa, Toyohiko Kinoshita

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The surface states dispersion of the Gd-induced one-dimensional chain structure on Si(111) with a 5×2 periodicity was determined by means of angle-resolved photoelectron spectroscopy(ARPES). At least three surface states are observed at the binding energy of around 1-2eV. The dispersions of these surface states resemble those of the alkali-earth metal-induced Si(111) 5×2 surface suggesting a similar surface atomic structure. Besides these three prominent surface states, another state with very weak intensity is also observed near the Fermi level; this is different from the alkali-earth metal-induced 5×2 surface in which the surface electronic state is semiconducting.

Original languageEnglish
Pages (from-to)125-129
Number of pages5
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume137-140
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - Jul 2004
Externally publishedYes

Fingerprint

Surface states
Photoelectron spectroscopy
Band structure
photoelectron spectroscopy
Alkalies
Metals
Earth (planet)
Crystal atomic structure
Electronic states
Fermi level
Binding energy
Dispersions
alkalies
atomic structure
metals
periodic variations
binding energy
electronics

Keywords

  • ARPES
  • Band dispersion
  • One-dimensional structure
  • Rare-earth metal
  • Si(111)
  • Surface states

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics
  • Surfaces and Interfaces

Cite this

Surface states band structure of Gd-induced one-dimensional chain structure on Si(111) surface measured by angle-resolved photoelectron spectroscopy. / Okuda, Taichi; Tohyama, Takahide; Ma, Xiao Dong; Wakita, Takanori; Harasawa, Ayumi; Kinoshita, Toyohiko.

In: Journal of Electron Spectroscopy and Related Phenomena, Vol. 137-140, No. SPEC. ISS., 07.2004, p. 125-129.

Research output: Contribution to journalArticle

Okuda, Taichi ; Tohyama, Takahide ; Ma, Xiao Dong ; Wakita, Takanori ; Harasawa, Ayumi ; Kinoshita, Toyohiko. / Surface states band structure of Gd-induced one-dimensional chain structure on Si(111) surface measured by angle-resolved photoelectron spectroscopy. In: Journal of Electron Spectroscopy and Related Phenomena. 2004 ; Vol. 137-140, No. SPEC. ISS. pp. 125-129.
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AU - Harasawa, Ayumi

AU - Kinoshita, Toyohiko

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