Title: Influence of pair correlations on phase transition in an ising lattice
Authors: Dekeyser, Raf * ×
Halzen, F * #
Issue Date: 1969
Publisher: American physical soc
Series Title: Physical review vol:181 issue:2 pages:949-953
Abstract: We propose a method to incorporate pair correlations of an Ising lattice system in molecular 6eld theory
to higher orders. The theory is applied to ferromagnetism, where a system of equations is obtained for the
response function (here the susceptibility). We obtain important corrections on the Weiss model and the
spherical model. This is illustrated by an explicit calculation of the critical temperature and the spurious
phase, appearing for T>Tc near the critical point in the case of a simple cubic lattice.
ISSN: 0031-899X
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Theoretical Physics Section
* (joint) first author
× corresponding author
# (joint) last author

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