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arXiv · 2104.11878

Theory of magnetic inertial dynamics in two-sublattice ferromagnets

Ritwik Mondal
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Abstract

The magnetic inertial dynamics have been investigated for one sublattice ferromagnets. Here, we develop the magnetization dynamics in two-sublattice ferromagnets including the intra- and inter-sublattice inertial dynamics. First, we derive the magnetic susceptibility of such a ferromagnet. Next, by finding the poles of the susceptibility, we calculate the precession and nutation resonance frequencies. Our results suggest that while the resonance frequencies show decreasing behavior with the increasing intra-sublattice relaxation time, the effect of inter-sublattice inertial dynamics is contrasting.

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Ritwik Mondal. 2021-04-24. Theory of magnetic inertial dynamics in two-sublattice ferromagnets. https://doi.org/10.1088/1361-648x/abfc6d

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