Surface composition of ordered alloys: An off-stoichiometric effect

Andrei Ruban

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Abstract

I predict the existence of an off-stoichiometric effect in ordered alloys in the form of a distinct transition in the surface segregation behavior of alloy components near the bulk stoichiometric composition. It is caused by the discontinuity in the effective chemical potential at the stoichiometric composition. The effect is predicted to occur at the (111) surface of ordered Ni3Al and Pt3Fe alloys.
Original languageEnglish
JournalPhysical Review B Condensed Matter
Volume65
Issue number17
Pages (from-to)174201
ISSN0163-1829
DOIs
Publication statusPublished - 2002

Bibliographical note

Copyright (2002) American Physical Society

Keywords

  • TRANSITION
  • SEGREGATION
  • NI3AL(111)

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