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Figure 7
Surface photovoltage versus time delay between FEL and synchrotron radiation pulses for different Si(111) surfaces: (a) high-quality 2 × 1 reconstructed surface, (b) partially contaminated and (c) with strong contamination-induced defects. |
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Figure 7
Surface photovoltage versus time delay between FEL and synchrotron radiation pulses for different Si(111) surfaces: (a) high-quality 2 × 1 reconstructed surface, (b) partially contaminated and (c) with strong contamination-induced defects. |