Electronic sputtering of LiF by Krypton (10 MeV/u): size dependent energy distributions of Li+(LiF)n clusters

  • H. Hijazi
  • H. Rothard
  • P. Boduch
  • I. Alzaher
  • Th. Langlinay
  • A. Cassimi
  • F. Ropars
  • T. Been
  • J. M. Ramillon
  • H. Lebius
  • B. Ban-d’Etat
  • L. S. Farenzena
  • E. F. da Silveira
Regular Article

Abstract

A combination of imaging techniques (XY) and time-of-flight (TOF) spectroscopy was used to measure the complete velocity vector of sputtered positive secondary ions in collisions of Kr33+ (10.1 MeV/u) with well-prepared LiF single crystals in the electronic stopping regime. The energy distributions N(E) of the cluster ions (LiF) n Li+ (n ≥ 0) depend on the size of the ejecta: the maximum is slightly shifted towards lower energy with increasing cluster size n. The measured energy distributions of emitted cluster ions can be fitted by a Maxwell-Boltzmann function N(E) = AEexp(−βE). This could be an indication that the processes generating the sputtering are compatible with a thermal origin.

Keywords

Clusters and Nanostructures 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • H. Hijazi
    • 1
  • H. Rothard
    • 1
  • P. Boduch
    • 1
  • I. Alzaher
    • 1
  • Th. Langlinay
    • 1
  • A. Cassimi
    • 1
  • F. Ropars
    • 1
  • T. Been
    • 1
  • J. M. Ramillon
    • 1
  • H. Lebius
    • 1
  • B. Ban-d’Etat
    • 1
  • L. S. Farenzena
    • 2
  • E. F. da Silveira
    • 3
  1. 1.Centre de Recherche sur les Ions, les Matériaux et la Photonique CIMAP-GANIL (CEA-CNRS-ENSICAEN-UCBN)Caen Cedex 05France
  2. 2.Physics DepartmentUniversidade Federal de Santa CatarinaFlorianópolisBrazil
  3. 3.Physics DepartmentPontifícia Universidade Católica do Rio de JaneiroRio de JaneiroBrazil

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