Ionization of xenon Rydberg atoms at a metal surface

被引：76

作者：

Hill, SB

Haich, CB

Zhou, Z

Nordlander, P

Dunning, FB

机构：

[1] Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA

[2] Rice Univ, Rice Quantum Inst, Houston, TX 77251 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.85.5444

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Experiments in which a thermal-energy beam of xenon Rydberg atoms is directed at near grazing incidence onto a flat Au(111) surface are described that provide new insight into charge transfer and electron tunneling during atom/surface interactions. Analysis of the data shows that for the present range of principal quantum number n, 13 less than or equal to n less than or equal to 20, ionization occurs at an atom/surface separation Z(i) = (4.5 +/- 0.9)n(2)a(0), where n(2)a(0) is the Bohr radius of the atom. This result is in good agreement with the value Z(i) similar to 3.8n(2)a(0) predicted by ab initio hydrogenic theory.

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页码：5444 / 5447

页数：4

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