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arxiv: cond-mat/0007389 · v1 · submitted 2000-07-25 · ❄️ cond-mat.stat-mech · hep-lat· hep-th

The critical behavior of frustrated spin models with noncollinear order

Andrea Pelissetto , Paolo Rossi , Ettore Vicari This is my paper
classification ❄️ cond-mat.stat-mech hep-lathep-th
keywords behaviorcriticalfixedfrustratedmodelsnoncollinearorderspin
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We study the critical behavior of frustrated spin models with noncollinear order, including stacked triangular antiferromagnets and helimagnets. For this purpose we compute the field-theoretic expansions at fixed dimension to six loops and determine their large-order behavior. For the physically relevant cases of two and three components, we show the existence of a new stable fixed point that corresponds to the conjectured chiral universality class. This contradicts previous three-loop field-theoretical results but is in agreement with experiments.

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