journal article·2024-03-01Open access

Nonlinear response of magnetization obeying inertial dynamics to superimposed dc and ac fields and dynamic magnetic hysteresis

Sergei V. Titov, William J. Dowling, Anton S. Titov, Andrey S. Fedorov

AIP Advances· Volume 14· Issue 3

Abstract

The nonlinear ac stationary responses of magnetization and the dynamic magnetic hysteresis of ferromagnetic particles with uniaxial anisotropy acted on by both external dc and ac magnetic fields are evaluated by employing the inertial Landau–Lifshitz–Gilbert equation. Analytical expressions are obtained for the components of the second- and third-order nonlinear susceptibility tensors using the perturbation method. The dynamic nonlinear susceptibility strongly depends on the dc field strength. The effect of inertia on the area and slope of the dynamic magnetic hysteresis loop is demonstrated. In addition to nutation resonance, the main nonlinear effects previously observed in the ferromagnetic resonance region (frequency doubling and appearance of weak subharmonic resonance peaks) are predicted in the nutation resonance frequency region.
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Research context

OpenAlex topics: Magnetic Properties and Applications · Characterization and Applications of Magnetic Nanoparticles · Geomagnetism and Paleomagnetism Studies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Kotel’nikov Institute of Radioengineering and Electronics of the Russian Academy of Sciences 1 , Fryazino, Moscow Region 141190, Russia

Department of Electronic and Electrical Engineering, Trinity College Dublin 2 , Dublin 2, Dublin, Ireland

The Moscow Institute of Physics and Technology (State University), Institutskiy per. 9 3 , Dolgoprudny, Moscow Region 141701, Russia

Kotel’nikov Institute of Radioengineering and Electronics of the Russian Academy of Sciences 4 , Moscow 125009, Russia

Funding

the Foundation for the Advancment of Theoretical Physics and Mathematics “BASIS”

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