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

Authors :
Bastien, G.
Courtade, Q.
Eliáš, A.
Haidamak, T.
Proschek, P.
Dušek, M.
Priessnitz, J.
Baláž, P.
Colman, R. H.
Source :
Phys. Rev. B 110, 094436 (2024)
Publication Year :
2024

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.

Details

Database :
arXiv
Journal :
Phys. Rev. B 110, 094436 (2024)
Publication Type :
Report
Accession number :
edsarx.2405.15479
Document Type :
Working Paper
Full Text :
https://doi.org/10.1103/PhysRevB.110.094436