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Title: Influence of the reaction field on the nature of the phase transition in the Potts model
Authors: Dekeyser, Raf ×
Maritan, A
Stella, Al #
Issue Date: 1983
Publisher: IOP Pub.
Series Title: Journal of Physics A, Mathematical and General vol:16 issue:8 pages:1713-1720
Abstract: It is shown how Onsager’s reaction field may be incorporated in mean-field-like calculations for the q-state Potts model. Its influence on the nature of the phase transition is considered both in a one-site and a two-site cluster approximation. Considerable improvement is obtained for qc(d), the value which separates first- and second-order transitions. The way in which qc(d) is modified when a second-neighbour interaction is added to the ferromagnetic nearest-neighbour one is also studied.
URI: 
ISSN: 0305-4470
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Theoretical Physics Section
× corresponding author
# (joint) last author

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