Monte Carlo simulations of transverse spin freezing in the three-dimensional frustrated Heisenberg model

Publisher Website
Google Scholar
Abstract
Monte Carlo simulations of the randomly frustrated three‐dimensional Heisenberg model with a moderate fraction (≤20%) of antiferromagnetic bonds show evidence of two distinct ordering events. Below Tc the spins align collinearly and exhibit ferromagnetic order, while below Txy the transverse components of the spins freeze leading to a noncollinear spin structure dominated by ferromagnetic correlations. The phase diagram and behavior of the calculated parameters agree qualitatively with those of experimental systems.