Step interactions on Pt(111) vicinal surfaces determined by grazing incidence X-ray diffraction: Influence of the step orientation

被引：8
作者：
Prevot, G. [1 ]
Barbier, L. [2 ]
Steadman, P. [3 ]
机构：
[1] Univ Paris 06, Inst NanoSci Paris, CNRS, UMR 7588, F-75015 Paris, France
[2] CEA, IRAMIS, SPCSI, F-91191 Gif Sur Yvette, France
[3] Diamond Light Source Ltd, Didcot OX11 0DE, Oxon, England
来源：
SURFACE SCIENCE | 2010年 / 604卷 / 15-16期
关键词：
X-ray scattering; diffraction; and reflection; Surface energy; Surface relaxation and reconstruction; Surface stress; Platinum; STM IMAGES; DYNAMICS; THERMODYNAMICS; DISSOCIATION; MORPHOLOGY; ENERGIES; CU(115);
D O I：
10.1016/j.susc.2010.04.012
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：
We have studied the step step interactions on the Pt(997) vicinal surface. Grazing incidence X-ray diffraction (GIXD) allowed us to measure the elastic atomic relaxations near the surface due to the steps. By means of the model of buried elastic dipoles, within the framework of anisotropic linear elasticity (ALE) calculations, the surface stress of Pt(111), and the elastic interaction between steps are deduced. The values so-obtained are compared to the values previously measured on the Pt(779) surface with the same technique. The comparison shows the strong influence of step geometry on step interactions. (C) 2010 Elsevier BM. All rights reserved.
引用
收藏
页码：1265 / 1272
页数：8
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