Excitation and Dynamics of Domain Walls in Three-Layer Ferromagnetic Structure with Different Parameters of the Magnetic Anisotropy and Exchange

Екомасов, Е. Г.; Муртазин, Р. Р.; Богомазова, О. Б.; Назаров, В. Н.

doi:10.4028/www.scientific.net/msf.845.195

Cited by 2 publications

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“…Many papers study the effect of spatial modulation of the periodic potential (or the presence of impurities in the system) on the dynamics of the SGE solitons [1,2,5,6,19,28]. The SGE model with impurities describes, for example, a multilayer ferromagnet [40][41][42][43]. The importance of impurity modes in the kink dynamics was shown in [5,28,36].…”

Section: Introductionmentioning

confidence: 99%

Excitation of Large-Amplitude Localized Nonlinear Waves by the Interaction of Kinks of the Sine-Gordon Equation with Attracting Impurity

Gumerov¹,

Екомасов²,

Kudryavtsev³

et al. 2019

Nelin. Dinam.

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The generation and evolution of localized waves on an impurity in the scattering of a kink of the sine-Gordon equation are studied. It is shown that the problem can be considered as excitation of oscillations of a harmonic oscillator by a short external impulse. The external impulse is modeled by the scattering of a kink on an impurity. The influence of the modes of motion of a kink on the excitation energy of localized waves is numerically and analytically studied. The method of collective coordinate for the analytical study is used. The value of this energy is determined by the ratio of the impurity parameters and the initial kink velocity. It is shown that the dependence of the energy (and amplitude) of the generated localized waves

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