Vibrations of the commensurate monolayer solid Xe/Pt(111)

被引：28

作者：

Bruch, LW

Graham, AP

Toennies, JP

机构：

[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA

[2] Max Planck Inst Stromungsforsch, D-37073 Gottingen, Germany

来源：

MOLECULAR PHYSICS | 1998年 / 95卷 / 03期

关键词：

D O I：

10.1080/00268979809483191

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High resolution helium atom scattering has been used to study the structure and phonons of the (root 3 x root 3)R30 degrees commensurate lattice of a monolayer of xenon on Pt(111). For in-plane vibrations, the data indicate a Brillouin zone-centre gap of about 1.3 meV and a dispersion of less than 0.5 meV from the Brillouin zone centre to the zone edge along the <(Gamma)over bar>(K) over bar azimuth of the Xe solid, the Pt(111)[11 (2) over bar] direction. The data are consistent with a model of top-site adsorption of the Xe and with lateral Xe-Xe interactions being the same as in the gas phase.

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页码：579 / 585

页数：7

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