Change of interatomic interaction in metals caused by excitation of an electronic subsystem

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A method of calculation of interatomic interaction potentials in the presence of ionized states has been developed. They have been obtained for the atoms with different ionization degree on example of aluminum. Molecular dynamic simulation of atoms transfer in the crystalline lattice showed that emission of ions from track of fast charged particle near the surface is possible ("Coulomb explosion") if the lifetime of ionized states is 10 -13s and higher. On the basis of pseudopotential approach, the interaction potentials behavior has been analyzed under conditions of excitation of electronic subsystem. It was discovered that thermal smearing of Fermi surface does not lead to any significant change of interatomic interaction forces and local increase in the conduction electrons concentration causes "softening" of the crystalline lattice, when the configuration with smaller interatomic distance becomes the equilibrium one.

Original languageEnglish
Title of host publicationProceedings - 2012 7th International Forum on Strategic Technology, IFOST 2012
DOIs
Publication statusPublished - 2012
Event2012 7th International Forum on Strategic Technology, IFOST 2012 - Tomsk, Russian Federation
Duration: 18 Sep 201221 Sep 2012

Publication series

NameProceedings - 2012 7th International Forum on Strategic Technology, IFOST 2012

Other

Other2012 7th International Forum on Strategic Technology, IFOST 2012
CountryRussian Federation
CityTomsk
Period18.9.1221.9.12

Keywords

  • electronic subsystem
  • interatomic interaction
  • metal
  • pseudopotential

ASJC Scopus subject areas

  • Management of Technology and Innovation

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