Abstract
A nonlinear-optical-interference technique in surface second-harmonic generation is developed to measure directly the variation of surface nonlinear susceptibility of CO/Ni(110) as a function of the CO coverage. It is found that some of the susceptibility elements vary linearly with the coverage and others nonlinearly. A simple model suggests that the former are dominated by contributions from nearly free electrons, while the latter by contributions from the more localized electrons.
Original language | English (US) |
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Pages (from-to) | 11571-11580 |
Number of pages | 10 |
Journal | Physical Review B |
Volume | 43 |
Issue number | 14 |
DOIs | |
State | Published - 1991 |
ASJC Scopus subject areas
- Condensed Matter Physics