Purely antiferromagnetic frustrated Heisenberg model in spin ladder compound BaFe$_2$Se$_3$
Strongly Correlated Electrons
2023-07-26 v1
Abstract
The spin dynamics in the block magnetic phase of the iron-based ladder compound \bfs\ has been studied by means of single crystal inelastic neutron scattering. Using linear spin wave theory and Monte-Carlo simulations, our analysis points to a magnetic Heisenberg model with effective frustrated antiferromagnetic couplings only, able to describe both the exotic block order and its dynamics. This new and purely antiferromagnetic picture offers a fruitful perspective to describe multiferroic properties but also understand the origin of the stripe-like magnetic instability observed under pressure as well as in other parent compounds with similar crystalline structure.
Keywords
Cite
@article{arxiv.2307.06193,
title = {Purely antiferromagnetic frustrated Heisenberg model in spin ladder compound BaFe$_2$Se$_3$},
author = {Roll A. and Petit S. and Forget A. and Colson D. and Banerjee A. and Foury-Leylekian P. and Balédent V},
journal= {arXiv preprint arXiv:2307.06193},
year = {2023}
}