Evidence of an oscillatory density profile in liquid metal surfaces: An asymptotic solution

M. Iwamatsu, S. K. Lai

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

The asymptotic solution for the Euler-Lagrange equation which describes the surface density profile of liquid metals is derived. The liquid metal is modelled as consisting of a Fermi electron gas and classical one-component-plasma ions. These latter systems are coupled via a first-order electron-ion pseudopotential which is considered to be appropriate for characterizing liquid alkali metals. It is demonstrated here that the density profile can be classified as either a monotonic or an oscillatory type, but the numerical data show that all liquid alkali metals fall into the latter category.

Original languageEnglish
Article number005
Pages (from-to)6039-6046
Number of pages8
JournalJournal of Physics Condensed Matter
Volume4
Issue number28
DOIs
StatePublished - 1992

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