1992    
1993    
1994    
1995    
1996    
1997    
1998    
1999    
2000    
2001    
2002    
2003    
2004    
2005    
2006    
2007    
2008    
2009    
2010    
2011    
2012    
2013    
2014    
2015    
2016    
Feder, R. and Gollisch, H., Scheunemann, T., Berakdar, J., Henk, J.

Theory of electron- and photon-induced two-electron emission from surfaces
Many Particle Spectroscopy of Atoms, Molecules, Clusters, and Surfacespp 435-449 (Eds.) Berakdar, J. and Kirschner, J.,Kluwer Academic/Plenum Publishers, New York, USA 2001
A short review is given of recent theoretical developments in (e,2e) and (γ,2e) spectroscopy from surfaces in reflection geometry. We first outline a general formal framework and currently viable approximations. Subsequently, a selectrion of numerical results demonstrates the quantitative agreement with experimental data, the extreme surface sensitivity of (e,2e), the imaging of a surface state dispersion, the influence of the Coulomb pair correlation between the two detected electrons, and the usefulness of spin-polarized primary electrons for the study of spin-dependent collision dynamics and of magnetic surface properties.

TH-2001-16