Pair approximation and Monte Carlo simulation for the spin S Blume-Capel model

Thespin- S Blume-Capel model is studied within the pair approximation and Monte Carlo simulations. Phase diagrams are obtained for general values of S. The results confirm the trend of mean-field-like approaches and are in disagreement with previous Monte Carlo simulations, renormalization group cal...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 1998, Vol.177, p.163-164
Main Authors: Pen˜a Lara, D., Plascak, J.A., Ferreira, S.J., de Alcantara Bonfim, O.F.
Format: Article
Language:English
Subjects:
Blume-Capel model spin- S
Monte Carlo simulation
Phase boundaries
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Summary:Thespin- S Blume-Capel model is studied within the pair approximation and Monte Carlo simulations. Phase diagrams are obtained for general values of S. The results confirm the trend of mean-field-like approaches and are in disagreement with previous Monte Carlo simulations, renormalization group calculations, and conformal field theories.
ISSN:0304-8853
DOI:10.1016/S0304-8853(97)00302-8