Figure 4
XRR curves of the mercury/vapour interface measured on two samples using a 170 nm beam. Data on the first sample (green triangles) exhibit the characteristic layering peak and are in good agreement with literature values (Magnussen et al., 1995). Oscillations in the XRR curve of the second sample (blue circles) suggest a mercury oxide layer at the interface. The dotted black line indicates the Fresnel reflectivity. Inset: incident angle versus sample translation measured on the second sample (blue circles) with fit of equation (1) (black line). |