Quasi-two-dimensional ferromagnetism in the triangular magnet EuAl$_{12}$O$_{19}$

G. Bastien; Q. Courtade; A. Eliáš; T. Haidamak; P. Proschek; M. Dušek; J. Priessnitz; P. Baláž; R. H. Colman

doi:10.1103/PhysRevB.110.094436

Quasi-two-dimensional ferromagnetism in the triangular magnet EuAl$_{12}$O$_{19}$

Strongly Correlated Electrons 2024-10-10 v2

Authors: G. Bastien , Q. Courtade , A. Eliáš , T. Haidamak , P. Proschek , M. Dušek , J. Priessnitz , P. Baláž , R. H. Colman

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Abstract

We report ferromagnetic ordering at $T_\mathrm {C}=1.3\,$ K in the quasi-two dimensional magnet EuAl $_{12}$ O $_{19}$ with large spins $S=7/2$ . This ferromagnetic state was characterized by magnetization and specific heat measurements and the experimental results were compared with classical Monte Carlo simulations. They reveal a strong single ion anisotropy leading to an uniaxial spontaneous magnetization along the $c$ axis. Furthermore the application of a magnetic field in the hard magnetization plane $ab$ reduces the Curie temperature and it reaches zero temperature at a magnetic field of $\mu_\mathrm{0} H_c \approx 0.5\,$ T.

Keywords

quasi-two-dimensional ferromagnetism triangular magnet EuAl12O19 single ion anisotropy Curie temperature magnetization

Cite

@article{arxiv.2405.15479,
  title  = {Quasi-two-dimensional ferromagnetism in the triangular magnet EuAl$_{12}$O$_{19}$},
  author = {G. Bastien and Q. Courtade and A. Eliáš and T. Haidamak and P. Proschek and M. Dušek and J. Priessnitz and P. Baláž and R. H. Colman},
  journal= {arXiv preprint arXiv:2405.15479},
  year   = {2024}
}

Quasi-two-dimensional ferromagnetism in the triangular magnet EuAl$_{12}$O$_{19}$

Abstract

Keywords

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