TMC(100) surface relaxation studied with low-energy-electron-diffraction intensity analysis

M. Tagawa*, T. Kawasaki, C. Oshima, S. Otani, K. Edamoto, A. Nagashima

*この研究の対応する著者

研究成果: Article査読

27 被引用数 (Scopus)

抄録

The atomic structures of TiC(100), NbC(100) and ZrC(100) were determined precisely by low-energy electron diffraction intensity analysis. The surface atomic structure is relaxed; topmost C atoms are displaced outward and metal atoms inward with respect to the truncated bulk atomic positions. It is consistent with the results of the force constant changes in surface phonon experiments. For TiC, the results agree qualitatively with the theoretical work [Price et al., Phys. Rev. Lett. 77 (1996) 3375] and quantitatively with the latest theoretical results based on the first-principles molecular dynamics method [Kobayashi, Jpn. J. Appl. Phys. 39 (2000) 4311-4314, Part 1, No. 7B, 30 July 2000].

本文言語English
ページ(範囲)59-64
ページ数6
ジャーナルSurface Science
517
1-3
DOI
出版ステータスPublished - 2002 10 1

ASJC Scopus subject areas

  • 物理化学および理論化学
  • 凝縮系物理学
  • 表面および界面

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