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A generalization of the spherical model: Reentrant phase transition in the spin one ferromagnet | | Sergey E. Savelev
; G. Ramirez-Santiago
; | | Date: |
6 Jul 1999 | | Subject: | Statistical Mechanics | cond-mat.stat-mech | | Affiliation: | All-Russian Electrical Engineering Institute, Moscow), G. Ramirez-Santiago (Instituto de Fisica, UNAM, Mexico | | Abstract: | By mapping the hamiltonian of the spin one ferromagnet onto that of the classical spherical model we investigate the possible phase transitions and the phase diagram of the spin one ferromagnet. Similarly to what happens in the spherical model we find no phase transition in one and two dimensions. Nonetheless, for three dimensions we obtain a phase diagram in which the most important and unexpected feature is the existence of a ferromagnetic-paramagnetic transition at low temperatures. | | Source: | arXiv, cond-mat/9907073 | | Services: | Forum | Review | PDF | Favorites | |
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