Abstract
We have investigated the adsorption of cesium on the Si(100) surface with photoelectron emission microscopy using linearly polarized green laser light. We observe a polarization dependent contrast between the () or () reconstructed terraces. Density-functional calculations reveal the geometric and electronic structure of the surface. The contrast between the () or () reconstructed domains is explained on the basis of dipole selection rules for the photoemission matrix elements.
- Received 19 January 2007
DOI:https://doi.org/10.1103/PhysRevLett.99.196102
©2007 American Physical Society