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Bekhechi, S.; Badehdah, M.; Benyoussef, A.; Ettaki, B.
Abdus Salam International Centre for Theoretical Physics, Trieste (Italy)1998
Abdus Salam International Centre for Theoretical Physics, Trieste (Italy)1998
AbstractAbstract
[en] Two non perturbative methods by means of the Transfer-Matrix Finite-Size-Scaling (TMFSS) and Monte Carlo (MC) simulations are used to investigate the spin-1 Ashkin-Teller model (A.T.M.). We have obtained rich phase diagrams with first and second order phase transitions with several multicritical points of higher order. Also this model exhibits a new partially ordered phase PO2 which does not exist in the spin-1/2 Ashkin-Teller model (A.T.M.). Finally, the critical behaviour of this model is discussed. (author)
Source
Jul 1998; 23 p; 25 refs, 6 figs
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