English

Variational analysis of a two-dimensional frustrated spin system: emergence and rigidity of chirality transitions

Analysis of PDEs 2019-04-17 v1 Mathematical Physics math.MP

Abstract

We study the discrete-to-continuum variational limit of the J1J_{1}-J3J_{3} spin model on the square lattice in the vicinity of the helimagnet/ferromagnet transition point as the lattice spacing vanishes. Carrying out the Γ\Gamma-convergence analysis of proper scalings of the energy, we prove the emergence and characterize the geometric rigidity of the chirality phase transitions.

Keywords

Cite

@article{arxiv.1904.07792,
  title  = {Variational analysis of a two-dimensional frustrated spin system: emergence and rigidity of chirality transitions},
  author = {Marco Cicalese and Marwin Forster and Gianluca Orlando},
  journal= {arXiv preprint arXiv:1904.07792},
  year   = {2019}
}