Comment on Ag(111) Surface Reconstruction Studied by Optical Second HarmonicGeneration. (Reannouncement with New Availability Information)

摘要

In a recent Letter Tang, Simpson, and Furtak (TSF) claim to have discovered apreviously unknown potential-induced surface reconstruction of Ag(111) in H2O from evidence of symmetry reduction in the second-harmonic generation (SHG) rotational anisotropy. In this Comment, we note shortcomings in the data and subsequent analysis which call into question the observation of reconstruction. The authors also fail to address the inconsistencies between their results and the existing published literature on this system.