Cluster Expansion for a Sublattice System with Unequal Coordination Numbers

T. Mohri, W. A. Oates

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


A cluster expansion of the internal energy is carried out for a phase comprised of sublattices which have different coordination numbers, and the equation for the mixing energy is derived. The resultant expression of the mixing energy is equivalent to that derived using the higher‐order approximation of the Bond Energy Model. It is shown that the effective pair interaction energy of the cluster expansion is exactly the site exchangc energy of the Bond Energy Model. The cluster expansion method is suitable for use in higher‐order approximation calculations of the free energy.

Original languageEnglish
Pages (from-to)401-407
Number of pages7
Journalphysica status solidi (b)
Issue number2
Publication statusPublished - 1995 Aug 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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