Get access
Advertisement

Cluster impacts in organics: microscopic models and universal sputtering curves

Authors

  • Arnaud Delcorte,

    Corresponding author
    1. Institute of Condensed Matter and Nanosciences - Bio and Soft Matter (IMCN/BSMA), Université catholique de Louvain, Louvain-la-Neuve, Belgium
    • Correspondence to: Arnaud Delcorte, Institute of Condensed Matter and Nanosciences - Bio and Soft Matter (IMCN/BSMA), Université catholique de Louvain, 1 Croix du Sud, B-1348 Louvain-la-Neuve, Belgium.

      E-mail: Arnaud.Delcorte@uclouvain.be

    Search for more papers by this author
  • Oscar A. Restrepo,

    1. Institute of Condensed Matter and Nanosciences - Bio and Soft Matter (IMCN/BSMA), Université catholique de Louvain, Louvain-la-Neuve, Belgium
    Search for more papers by this author
  • Karim Hamraoui,

    1. Institute of Condensed Matter and Nanosciences - Bio and Soft Matter (IMCN/BSMA), Université catholique de Louvain, Louvain-la-Neuve, Belgium
    Search for more papers by this author
  • Bartlomiej Czerwinski

    1. Institute of Condensed Matter and Nanosciences - Bio and Soft Matter (IMCN/BSMA), Université catholique de Louvain, Louvain-la-Neuve, Belgium
    Search for more papers by this author

  • This contribution was part of the special session in honor of Prof. John Vickerman.

Abstract

This article reviews the results of molecular dynamics simulations of kilo-electron-volt projectile (Ga, Au1−400, Bi1−5, C60, Ar60−2000 and organic clusters) impacts with two model hydrocarbon targets, an amorphous solid made of kilodalton molecules and a crystal of polyethylene with ‘infinite’ chain length. The ‘universal’ dependences of the sputtered mass on the projectile energy, when scaled by the projectile mass, with their characteristic transition around 1 eV/amu (or ~14 km/s), are analyzed and explained by the physics of the interaction. We also comment on comparisons with recent experimental sputtering data. Copyright © 2014 John Wiley & Sons, Ltd.

Get access to the full text of this article

Ancillary