A bond-diluted Ising ferromagnet with first- and second-neighbour interactions

A. R. McGurn, M. F. Thorpe

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The authors studied the effects of second-neighbour interactions on the critical temperature of the bond-diluted Ising model within the framework of the decorated Ising model. A suitable second-neighbour bond problem can be formulated and solved in the annealed limit. This limit is known to be quite reliable for Ising models without competing interactions. Plots of the critical-temperature and zero-temperature magnetisation versus concentration are given for various ratios of the second to first neighbour exchange coupling. When this ratio is very small, but finite, there is a tail in the phase boundary.

Original languageEnglish (US)
Article number019
Pages (from-to)3667-3677
Number of pages11
JournalJournal of Physics C: Solid State Physics
Volume11
Issue number17
DOIs
StatePublished - Dec 1 1978

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Engineering(all)
  • Physics and Astronomy(all)

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