Deformation of octahedra at LaB6(100) surface studied by HREELS

T. Nagao, T. Kitamura, T. Iizuka, M. Umeuchi, C. Oshima, S. Otani

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Abstract

The surface phonons of LaB6(100) surface have been investigated by means of high resolution electron energy spectroscopy. On the clean surface we have observed 8 loss peaks in the off-specular spectra, of which the higher energy losses are related to the vibrations of the three-dimensional network of boron. Theoretical analysis based on a force constant model strongly suggests the deformation of the three-dimensional network of boron; the topmost octahedra are expanded by ∼ 0.004 nm parallel to the surface.

Original languageEnglish
Pages (from-to)391-395
Number of pages5
JournalSurface Science
Volume287-288
Issue numberPART 1
DOIs
Publication statusPublished - 1993 May 10

ASJC Scopus subject areas

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

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    Nagao, T., Kitamura, T., Iizuka, T., Umeuchi, M., Oshima, C., & Otani, S. (1993). Deformation of octahedra at LaB6(100) surface studied by HREELS. Surface Science, 287-288(PART 1), 391-395. https://doi.org/10.1016/0039-6028(93)90809-X