Morphological change of D2O layers on Ru(0001) probed with He atom scattering

被引：23

作者：

Kondo, Takahiro

Mae, Shiho

Kato, Hiroyuki S.

Kawai, Maki

机构：

[1] RIKEN, Surface Chem Lab, Inst Chem & Phys Res, Wako, Saitama 3510198, Japan

[2] Univ Tokyo, Grad Sch Frontier Sci, Dept Adv Mat Sci, Chiba 2778561, Japan

来源：

SURFACE SCIENCE | 2006年 / 600卷 / 18期

关键词：

water; ruthenium; atom-solid scattering and diffraction; low index single crystal surfaces;

D O I：

10.1016/j.susc.2006.01.068

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：

The morphological change of DO layers on a Ru(0001) surface has been investigated on the basis of He atom scattering. With the increase of DO exposure on Ru(0001) at 111 K, the intensity of a specularly reflected He beam continuously decreases up to the exposure of 1.0 L (Langmuir). At the DO coverage of 1.0 adsorbed layer (similar to 1.5 L), which is characterized by temperature-programmed desorption measurements, the formation of the (root 3 x root 3)R30 degrees superstructure as a result of the diffusion of D2O on the surface was confirmed by He atom diffraction. With the further increase of D2O exposure, at 2-3 adsorbed layers, the disordered structure was found to be on the surface at 111 K. The morphological change of the disordered layers was observed during annealing.. and discussed in detail. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：3570 / 3574

页数：5

共 33 条

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