Two electron photoemission in solids

被引：59

作者：

Herrmann, R ^{[1
]}

Samarin, S ^{[1
]}

Schwabe, H ^{[1
]}

Kirschner, J ^{[1
]}

机构：

[1] Max Planck Inst Mikrostrukturphys, D-06120 Halle, Germany

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.81.2148

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We observed the emission of correlated electron pairs from the valence band of solids following the absorption of single photons in the vacuum ultraviolet range. Applying a time-of-flight technique, we measured the energy distributions of correlated electron pairs emitted from clean Cu(001) and Ni(001) crystals. Significant differences between both metals were found. For the interpretation we suggest a single Step two-electron-photoionization process and a competing two step mechanism involving a single photoionization and a subsequent electron-electron collision in the valence band.

引用

页码：2148 / 2151

页数：4

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