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Comparative study on phase transition behaviors of fractional molecular field theory and random-site Ising model
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Fractional molecular field theory(FMFT) is a phenomenological theory that describes phase transitions in crystals with randomly distributed components, such as the relaxor-ferroelectrics and spin glasses. In order to verify the feasibility of this theory, this paper fits it to the Monte Carlo simulations of specific heat and susceptibility versus temperature of two-dimensional(2D) random-site Ising model(2D-RSIM). The results indicate that the FMFT deviates from the 2D-RSIM significantly. The ma... 相似文献
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