English

Absence of long-range order in a general spin-$S$ kagome lattice Ising antiferromagnet

Statistical Mechanics 2020-07-08 v1

Abstract

The possibility of the emergence of some kind of long-range ordering (LRO) due to the increase of multiplicity of the local degrees of freedom (spin value SS) is studied in an Ising antiferromagnet on a kagome lattice (IAKL) by Monte Carlo simulation. In particular, the critical exponent of the spin correlation function, obtained from a finite-size scaling analysis, is evaluated for various values of SS, including S=S=\infty, with the goal to determine whether there exists some threshold value of the spin SCS_C above which the system would show true or quasi-LRO, similar to a related model on a triangular lattice (IATL). It is found that, unlike in the IATL case, the IAKL model remains disordered for any spin value and any finite temperature.

Keywords

Cite

@article{arxiv.2007.03491,
  title  = {Absence of long-range order in a general spin-$S$ kagome lattice Ising antiferromagnet},
  author = {M. Semjan and M. Žukovič},
  journal= {arXiv preprint arXiv:2007.03491},
  year   = {2020}
}

Comments

14 pages, 5 figures