We introduce a minimal spin model for describing the magnetic properties of CuCrO2. Our Monte Carlo simulations of this model reveal a rich magnetic field induced phase diagram, which explains the measured field dependence of the electric polarization. The sequence of phase transitions between different mutiferroic states arises from a subtle interplay between spatial and spin anisotropy, magnetic frustration and thermal fluctuations. Our calculations are compared to new measurements up to 92 T.
@article{arxiv.1404.0991,
title = {Magnetic field induced phases in anisotropic triangular antiferromagnets: application to $\mathrm{CuCrO_2}$},
author = {Shi-Zeng Lin and Kipton Barros and Eundeok Mun and Jae-Wook Kim and Matthias Frontzek and S. Barilo and S. V. Shiryaev and Vivien S. Zapf and Cristian D. Batista},
journal= {arXiv preprint arXiv:1404.0991},
year = {2014}
}