Abstract
Oscillatory surface-density profiles (layers) have previously been reported in several metallic liquids, one dielectric liquid, and in computer simulations of dielectric liquids. We have now seen surface layers in two other dielectric liquids, pentaphenyl trimethyl trisiloxane, and pentavinyl pentamethyl cyclopentasiloxane. These layers appear below and , respectively; both thresholds correspond to where is the liquid-gas critical temperature. All metallic and dielectric liquid surfaces previously studied are also consistent with the existence of this threshold, first indicated by the simulations of Chacón et al. [Phys. Rev. Lett. 87, 166101 (2001)]. The layer width parameters, determined using a distorted-crystal fitting model, follow common trends as functions of for both metallic and dielectric liquids.
3 More- Received 10 March 2010
DOI:https://doi.org/10.1103/PhysRevB.81.184206
©2010 American Physical Society