Anisotropic exchange in GdGa
Materials Science
2020-11-06 v1 Strongly Correlated Electrons
Abstract
In this work we discuss the non-collinear ground-state reported for GdGa on the basis of a model Hamiltonian considering anisotropic exchange interactions. We show that a competition between intra and inter-sublattice exchange interactions can lead to a canted structure, which competes with a collinear (ferro or antiferromagnetic) order. The mean-field thermodynamic analysis of the model for shows a good agreement between calculated and reported experimental data of the canting angle and isothermal entropy change for GdGa.
Cite
@article{arxiv.1910.11833,
title = {Anisotropic exchange in GdGa},
author = {V. S. R. de Sousa and E. P. Nóbrega and P. O. Ribeiro and B. P. Alho and P. J. von Ranke},
journal= {arXiv preprint arXiv:1910.11833},
year = {2020}
}
Comments
6 pages, 5 figures