Nutation Resonance in Ferromagnets
Mesoscale and Nanoscale Physics
2020-12-02 v3
Abstract
The inertial dynamics of magnetization in a ferromagnet is investigated theoretically. The analytically derived dynamic response upon microwave excitation shows two peaks: ferromagnetic and nutation resonances. The exact analytical expressions of frequency and linewidth of the magnetic nutation resonance are deduced from the frequency dependent susceptibility determined by the inertial Landau-Lifshitz-Gilbert equation. The study shows that the dependence of nutation linewidth on the Gilbert precession damping has a minimum, which becomes more expressive with increase of the applied magnetic field.
Cite
@article{arxiv.2008.12221,
title = {Nutation Resonance in Ferromagnets},
author = {Mikhail Cherkasskii and Michael Farle and Anna Semisalova},
journal= {arXiv preprint arXiv:2008.12221},
year = {2020}
}