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Avoided Critical Behavior in a Uniformly Frustrated System

L. Chayes·V. J. Emery·S. A. Kivelson·Z. Nussinov·G. Tarjus
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Abstract

We study the effects of weak long-ranged antiferromagnetic interactions of strength $Q$ 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 $T_c(Q=0)$ is strictly greater than $\lim_{Q\to 0} T_c(Q)$. The behavior of this system at temperatures less than $T_c(Q=0)$ 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.

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L. Chayes, V. J. Emery, S. A. Kivelson, Z. Nussinov, G. Tarjus. 1995-07-28. Avoided Critical Behavior in a Uniformly Frustrated System. https://doi.org/10.1016/0378-4371(95)00374-6

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