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arXiv · 1207.2349

Incommensurate vortices and phase transitions in two-dimensional XY models with interaction having auxiliary minima

S. E. Korshunov
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Abstract

We discuss if phase diagrams of the two-dimensional XY models in which the interaction of nearest planar spins is a nonmonotonic function of the angle u between them, V(u) = - Jcos(u) - Kcos(qu) can include a phase transition related to the dissociation of pairs of fractional vortices when q > 2.

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S. E. Korshunov. 2012-09-18. Incommensurate vortices and phase transitions in two-dimensional XY models with interaction having auxiliary minima. https://arxiv.org/abs/1207.2349

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