Oxygen adsorption on LaB6 (100) and (111) surfaces

N. Yamamoto*, E. Rokuta, Y. Hasegawa, T. Nagao, M. Trenary, C. Oshima, S. Otani

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


The adsorption of oxygen on LaB6 (100) and (111) surfaces has been studied with high resolution electron energy loss spectroscopy (HREELS). In the HREELS spectra of the clean (100) surface, only one peak at 14 meV is observed, while two intense peaks appear at 16 and 27 meV in the spectra of the clean (111) surface. Oxygen adsorption on the (111) surface is quite different from the (100) surface: oxygen attacks the surface framework of boron on the (111) surface even at room temperature, resulting in the formation of a complex structure including B-O bonds, while the superstructure with only La-O bonds is formed on the (100) surface at room temperature. Only after heating to above 700°C, a B-O bond is formed on the (100) surface.

Original languageEnglish
Pages (from-to)708-711
Number of pages4
JournalSurface Science
Publication statusPublished - 1996 Jun 20

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces


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