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Effect of sample shape on nonlinear magnetization dynamics under an external magnetic field

“…that corresponds to the results of previous works [5,6,8]. A new focus attractor appears (Y ¼ 0) at a compression of the particle's shape along the symmetry Ox-axis (a positive value of the driving parameter).…”

“…1 We note that dynamics has considerably trivial behavior in the case of spherical shape: only focus attractors exist [5,6]. As the driving parameter increases further, there are series of chaos intermittency regions on the bifurcation map.…”

“…A common way to analyze nonlinear equations is to solve them numerically [5][6][7][8][9][10][11]. A fourth-order Runge-Kutta scheme was used in our computations.…”

“…The Landau-Lifshitz-Gilbert (LLG) approach is widely used for micromagnetic calculations, but, because of its mathematical complexity, attempts to apply it to a regular study of dynamics problems were made only in past few years [5][6][7][8][9][10][11]. In spite of this, to our knowledge, influence of magnetic sample shape on nonlinear magnetization dynamics was not systematically examined.…”

Fundamentals of Cosmological Particle Physics

“…Detracting from the hypothetical possibility of discovery, storage and direct study of any relics of superhigh energy physics, such as primordial magnetic monopoles (t 'Hooft 1974;Polyakov 1974;Preskill 1979, Rodionov 1996 we have to resort to finding new non-trivial methods for verification of this physics.…”