Generalized Helimagnets between Two and Four Dimensions

François David and Thierry Jolicœur
Phys. Rev. Lett. 76, 3148 – Published 22 April 1996
PDFExport Citation

Abstract

We study the phase transitions of N-component generalized helimagnets. In the neighborhood of two dimensions, a D=2+ε renormalization group study reveals a rich fixed point structure as well as a nematiclike phase with partial spin ordering. In the physical case N=3, relevant to real magnets with noncollinear ordering, we show that this implies an XY-like transition between the ordered phase and the nematiclike phase. A non-Abelian mean-field calculation is shown to lead to the same picture but then the principal chiral fixed point, which had been proposed earlier as the relevant fixed point for D=3 helimagnets, plays no role due to the appearance of a first-order line.

  • Received 21 December 1995

DOI:https://doi.org/10.1103/PhysRevLett.76.3148

©1996 American Physical Society

Authors & Affiliations

François David and Thierry Jolicœur

  • Service de Physique Théorique, Centre d'Etudes Nucléaires de Saclay, F-91191 Gif-sur-Yvette CEDEX, France

References (Subscription Required)

Click to Expand
Issue

Vol. 76, Iss. 17 — 22 April 1996

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×