Surface phonon dispersion curves of NiAl(111)

Kazuo Kitamura*, Tadaaki Nagao, Toshiaki Osaka, Rene Franchy, Chuhei Oshima

*この研究の対応する著者

研究成果: Article査読

7 被引用数 (Scopus)

抄録

The surface phonon dispersion curves of the NiAl(111) surface have been measured along Γ̄K̄ of the two dimensional Brillouin zone by means of high-resolution energy loss spectroscopy. The observed dispersion curves were compared with lattice dynamical calculations of a slab shaped crystal on the basis of a force constant model including up to the third nearest-neighbor interaction. Good agreement between the experimental and calculated curves was obtained for two different combinations of the surface force constants, which suggests the existence of two different models concerning the surface atomic relaxation.

本文言語English
ページ(範囲)3252-3256
ページ数5
ジャーナルJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
32
7
出版ステータスPublished - 1993 7

ASJC Scopus subject areas

  • 物理学および天文学(その他)

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