Stacked Triangular XY Antiferromagnets: End of a Controversial Issue on the Phase Transition

TL;DR

This paper conclusively demonstrates through advanced Monte Carlo simulations that the phase transition in XY stacked triangular antiferromagnets is first-order, resolving a long-standing scientific controversy.

Contribution

It provides definitive evidence confirming the first-order nature of the phase transition, settling debates with new computational and theoretical validation.

Findings

Phase transition is first-order in XY stacked triangular antiferromagnets.

Monte Carlo simulations support previous nonperturbative renormalization group results.

The controversy over the transition's nature is resolved.

Abstract

We show in this paper by using the Wang-Landau flat-histogram Monte Carlo method that the phase transition in the XY stacked triangular antiferromagnet is clearly of first-order, confirming results from latest Monte Carlo simulation and from a nonperturbative renormalization group, putting an end to a long-standing controversial issue.