Hyperbolic Spin Waves in Magnetic Polar Metals
Mesoscale and Nanoscale Physics
2023-12-29 v2 Strongly Correlated Electrons
Abstract
We demonstrate the emergence of collective spin modes with hyperbolic dispersion in three-dimensional spin-orbit coupled polar metals magnetized by intrinsic ordering or applied fields. These particle-hole bound states exist for arbitrarily weak repulsive interactions; they are optically accessible and can be used to generate pure spin current when magnetization is tilted away from the polar axis. We suggest material hosts for these excitations and discuss their potential relevance to nanoscale spintronic and polaritonic applications.
Cite
@article{arxiv.2312.14377,
title = {Hyperbolic Spin Waves in Magnetic Polar Metals},
author = {Abhishek Kumar and Premala Chandra and Pavel A. Volkov},
journal= {arXiv preprint arXiv:2312.14377},
year = {2023}
}
Comments
Main text: 7 pages, 2 figures. Supplementary: 22 pages