Oxygen adsorption and ordering on Ru(10(1)over-bar-0)

被引:29
|
作者
Baraldi, A
Lizzit, S
Comelli, G
Paolucci, G
机构
[1] Sincrotrone Trieste, I-34012 Trieste, Italy
[2] INFM, Lab TASC, I-34012 Trieste, Italy
[3] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy
来源
PHYSICAL REVIEW B | 2001年 / 63卷 / 11期
关键词
D O I
10.1103/PhysRevB.63.115410
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The dissociative oxygen chemisorption on the Ru(10 (1) over bar0) surface has been studied by monitoring the changes of the O 1s and Ru 3d(5/2) core levels and by measuring the evolution of the diffraction pattern during oxygen exposure at 270 K. The sensitivity of core level binding energies to different geometrical configurations, together with the measurements of the oxygen-induced diffraction spot profile along the [0001] and [1 (2) over bar 10] directions, permit us to follow the details of formation of the c(2x4) and the (2x1)p2mg ordered structures.
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页数:6
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