Thermal diffuse scattering from surface-melted Pb(110)

We report a surface x-ray diffraction study of diffuse scattering from Pb(110). We reproduce the observations by Fuoss et al. [Phys Rev. Lett. 60, 2046 (1988)]. However, a more extended examination of the observed diffuse intensity demonstrates that it cannot be caused by scattering from a melted surface film. We show that the intensity is due to thermal diffuse scattering.