Auger Decay of Surface Rydberg State

Shiwu Gao, B. Lundqvist
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Abstract

Decay of the first Rydberg surface state on a metal surface is calculated in terms of Auger transitions between the electronic surface states. Using a three band model to describe the relevant surface band structure, the line width due to this surface Auger process is found to be about 8 times larger on the Ni(111) surface than on the Cu surface. This significant difference results from the difference in surface state occupancy. Comparison with recent experimental data from two photon photoemission demonstrates that these surface states are essential for the decay of the excited electron at surface
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表面里德堡态的俄歇衰变
金属表面上第一里德伯表面态的衰减是根据电子表面态之间的俄歇跃迁来计算的。利用三带模型描述相关的表面带结构,发现Ni(111)表面由于这种表面螺旋过程引起的线宽比Cu表面的线宽大约8倍。这种显著的差异是由于表面态占有的差异。与最近的双光子光发射实验数据的比较表明,这些表面态是激发电子在表面衰变所必需的
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