Multicritical behavior in models with two competing order parameters

We employ the nonperturbative functional renormalization group to study models with an O(N(1) ⊕O(N)(2)) symmetry. Here different fixed points exist in three dimensions, corresponding to bicritical and tetracritical behavior induced by the competition of two order parameters. We discuss the critical...

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Veröffentlicht in:	Physical review. E, Statistical, nonlinear, and soft matter physics Statistical, nonlinear, and soft matter physics, 2013-10, Vol.88 (4), p.042141-042141, Article 042141
Hauptverfasser:	Eichhorn, Astrid, Mesterházy, David, Scherer, Michael M
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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