Antiferromagnetic magnons and local anisotropy: dynamical mean-field study
Strongly Correlated Electrons
2021-09-10 v2 Statistical Mechanics
Abstract
We present a dynamical mean-field study of antiferromagnetic magnons in one-, two- and three-orbital Hubbard model of square and bcc cubic lattice at intermediate coupling strength. Weinvestigate the effect of anisotropy introduced by an external magnetic field or single-ion anisotropy.For the latter we tune continuously between the easy-axis and easy-plane models. We also analyzea model with spin-orbit coupling in cubic site-symmetry setting. The ordered states as well as themagnetic excitations are sensitive to even a small breaking ofSU(2)symmetry of the model andfollow the expectations of spin-wave theory as well as general symmetry considerations.
Keywords
Cite
@article{arxiv.2105.12468,
title = {Antiferromagnetic magnons and local anisotropy: dynamical mean-field study},
author = {A. Niyazi and D. Geffroy and J. Kunes},
journal= {arXiv preprint arXiv:2105.12468},
year = {2021}
}
Comments
8 pages, 6 figures