Soviet Physics Journal

, Volume 27, Issue 6, pp 499–503 | Cite as

Pseudopotential calculation of the energy of vacancy formation in binary alloys as a function of the degree of far order

  • E. V. Chulkov
  • V. V. Zhestikov
Solid State Physics
  • 31 Downloads

Abstract

Pseudopotential theory is used to study the dependence of energy of vacancy formation EIVf in binary replacement alloys as a function of the degree of far order η is shown that E IV f =Eo+δE·η]2, where Eo is the energy of vacancy formation in a disordered alloy, δE then contains the ordering energy. It is shown with examples of the alloys CuZn, AuZn, and AgCd that the energy of vacancy formation can decrease with increase in the degree of far order. It is found that in calculating the vacancy formation energy it is necessary to consider lattice relaxation energy, since such consideration can lead to a change in the sign of δE.

Keywords

Binary Alloy CuZn Formation Energy Lattice Relaxation Relaxation Energy 

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Copyright information

© Plenum Publishing Corporation 1984

Authors and Affiliations

  • E. V. Chulkov
    • 1
  • V. V. Zhestikov
    • 1
  1. 1.Atmospheric Optics Institute, Siberian BranchAcademy of Sciences of the USSRUSSR

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