Vibrations of alkali-metal atoms chemisorbed on the Al(111) surface

T. Nagao, Y. Iizuka, M. Umeuchi, T. Shimazaki, C. Oshima

Research output: Contribution to journalArticle

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Abstract

By use of high-resolution electron-energy-loss spectroscopy, atomic vibrations of the sodium and the lithium chemisorbed Al(111) surfaces have been investigated as a function of coverage. Owing to the screening of the adsorbate-adsorbate interaction by electrons of the Al atoms located between the alkali-metal atoms, the vibrational energy of Na on Al(111) remains almost constant (11.6-12.6 meV) over the coverage range of θ = 1 15- 1 3. The vibrational energy of Li on Al(111) also remains constant (17.6-18.1 meV) from θ = 1 30 to θ = 1, which strongly suggests a substitutional adsorption geometry for this system. Good agreement has been found between a recent ab initio calculation and the present experiment for the vibrational energy of the Al(111)(√3 × √3)R30° -Na surface.

Original languageEnglish
Pages (from-to)269-275
Number of pages7
JournalSurface Science
Volume329
Issue number3
DOIs
Publication statusPublished - 1995 May 20

Fingerprint

Alkali Metals
Alkali metals
Adsorbates
alkali metals
Atoms
vibration
Electron energy loss spectroscopy
Lithium
atoms
Screening
Sodium
Adsorption
Geometry
energy
Electrons
screening
lithium
energy dissipation
sodium
electron energy

Keywords

  • Adatoms
  • Alkali metals
  • Aluminum
  • Electron energy loss spectroscopy
  • Phonons

ASJC Scopus subject areas

  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Condensed Matter Physics
  • Surfaces and Interfaces

Cite this

Nagao, T., Iizuka, Y., Umeuchi, M., Shimazaki, T., & Oshima, C. (1995). Vibrations of alkali-metal atoms chemisorbed on the Al(111) surface. Surface Science, 329(3), 269-275. https://doi.org/10.1016/0039-6028(95)00119-0

Vibrations of alkali-metal atoms chemisorbed on the Al(111) surface. / Nagao, T.; Iizuka, Y.; Umeuchi, M.; Shimazaki, T.; Oshima, C.

In: Surface Science, Vol. 329, No. 3, 20.05.1995, p. 269-275.

Research output: Contribution to journalArticle

Nagao, T, Iizuka, Y, Umeuchi, M, Shimazaki, T & Oshima, C 1995, 'Vibrations of alkali-metal atoms chemisorbed on the Al(111) surface', Surface Science, vol. 329, no. 3, pp. 269-275. https://doi.org/10.1016/0039-6028(95)00119-0
Nagao T, Iizuka Y, Umeuchi M, Shimazaki T, Oshima C. Vibrations of alkali-metal atoms chemisorbed on the Al(111) surface. Surface Science. 1995 May 20;329(3):269-275. https://doi.org/10.1016/0039-6028(95)00119-0
Nagao, T. ; Iizuka, Y. ; Umeuchi, M. ; Shimazaki, T. ; Oshima, C. / Vibrations of alkali-metal atoms chemisorbed on the Al(111) surface. In: Surface Science. 1995 ; Vol. 329, No. 3. pp. 269-275.
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