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Ising model with isotropic competing interactions in the presence of a field (1994)

Barbosa, Marcia C.

Springer

Il nuovo cimento della Società Italiana di Fisica 16 (1994), S. 795-802

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ISSN: 0392-6737

Keywords: General studies of phase transitions ; Order-disorder and statistical mechanics of model systems ; Other phase studies of systems ; Conference proceedings

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Summary We consider a spin system with competing interactions isotropic with respect to the axes of a cubic lattice in the presence of an external field. We show that for small values of the external fieldH, the paramagnetic to modulated phase transition is fluctuation-induced first order, while for larger fields, such transition changes to continuous at a tricritical point. Applications for fluids systems are proposed.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF02456726

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