Nematic phase in stripe-forming systems within the self-consistent screening approximation.
Phys Rev E Stat Nonlin Soft Matter Phys
; 88(6): 062140, 2013 Dec.
Article
em En
| MEDLINE
| ID: mdl-24483418
ABSTRACT
We show that in order to describe the isotropic-nematic transition in stripe-forming systems with isotropic competing interactions of the Brazovskii class it is necessary to consider the next to leading order in a 1/N approximation for the effective Hamiltonian. This can be conveniently accomplished within the self-consistent screening approximation. We solve the relevant equations and show that the self-energy in this approximation is able to generate the essential wave vector dependence to account for the anisotropic character of a two-point correlation function characteristic of a nematic phase.
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01-internacional
Base de dados:
MEDLINE
Tipo de estudo:
Diagnostic_studies
/
Screening_studies
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article