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

被引：0
|
作者：
Titov, Sergei V. [1 ]
Dowling, William J. [2 ]
Titov, Anton S. [3 ]
Fedorov, Andrey S. [3 ,4 ]
机构：
[1] Russian Acad Sci, Kotelnikov Inst Radioengn & Elect, Fryazino 141190, Moscow Region, Russia
[2] Trinity Coll Dublin, Dept Elect & Elect Engn, Dublin 2, Ireland
[3] State Univ, Moscow Inst Phys & Technol, Inst Skiy Per 9, Dolgoprudnyi 141700, Moscow Region, Russia
[4] Russian Acad Sci, Kotelnikov Inst Radioengn & Elect, Moscow 125009, Russia
来源：
AIP ADVANCES | 2024年 / 14卷 / 03期
关键词：
STONER-WOHLFARTH MODEL; SUSCEPTIBILITIES; NANOPARTICLE; PARTICLE;
D O I：
10.1063/5.0191413
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
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. (c) 2024 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license.
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页数：8
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