Molecular dynamics study of size effect on surface tension of metal droplets

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • S. Masuda
  • S. Sawada

Research units

  • Kwansei Gakuin University

Abstract

We investigate the size-effect on the surface tension of nano-scale gallium droplets by molecular dynamics simulations. The interaction among gallium metal atoms is described by a many-body potential. We derive a generic expression of the stress tensor to evaluate the surface tension of systems including many-body interactions. The equivalency between the mechanical and thermodynamic definitions of the surface tension is also proved in such systems. It is shown that the surface tension of gallium droplets increases with the droplet size approaching its value for a planar surface, which is consistent with the resent experimental result.

Details

Original languageEnglish
Pages (from-to)637-644
Number of pages8
JournalEuropean Physical Journal D
Volume61
Issue number3
Publication statusPublished - Feb 2011
MoE publication typeA1 Journal article-refereed

    Research areas

  • LIQUID-VAPOR INTERFACE, LENNARD-JONES LIQUID, TOLMAN LENGTH, STATISTICAL-MECHANICS, CURVATURE CORRECTIONS, PATCHING MODEL, SIMULATION, DEPENDENCE

ID: 4222170