6 research outputs found
Avoided Critical Behavior in a Uniformly Frustrated System
We study the effects of weak long-ranged antiferromagnetic interactions of
strength on a spin model with predominant short-ranged ferromagnetic
interactions. In three dimensions, this model exhibits an avoided critical
point in the sense that the critical temperature is strictly greater
than . The behavior of this system at temperatures less
than is controlled by the proximity to the avoided critical point.
We also quantize the model in a novel way to study the interplay between
charge-density wave and superconducting order.Comment: 32 page Latex file, figures available from authors by reques