Dissociative sticking of O-2 on Al(111)

被引：148

作者：

Osterlund, L ^{[1
]}

Zoric, I ^{[1
]}

Kasemo, B ^{[1
]}

机构：

[1] GOTHENBURG UNIV,S-41296 GOTHENBURG,SWEDEN

来源：

PHYSICAL REVIEW B | 1997年 / 55卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.55.15452

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dissociative sticking probability, S-0, of O-2 on Al(111) has been measured as a function of incident translational and vibrational energy. S-0 rises from approximate to 10(-2) for energies approximate to 30 meV to near unity in the range 0.6-2.0 eV, demonstrating an activated dissociation event. Vibrational excitation enhances the sticking. Surface temperature has no effect on S-0. A peculiar dependence on polar angle is observed. The results are used to discuss possible mechanisms for the recent observation [H. Brune et al. Phys. Rev. Lett. 68, 624 (1992)] of widely separated O atoms after O-2 dissociation on Al(111).

引用

页码：15452 / 15455

页数：4

共 28 条

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