Magnetism

Bifurcation magnetic resonance in type (100) films upon in-plane magnetization

D. I. Sementsov, A. M. Shutyi

Ulyanovsk State University

Abstract: The magnetization dynamics in (100) single-crystal films with a cubic anisotropy has been studied by numerical simulation. It has been shown that the additional (bifurcation) resonance caused by the bistability, i.e., two closely spaced equilibrium magnetization states, appears upon in-plane magnetization along the hard axis. The change in the resonance region and the corresponding dynamic regimes with a variation in the RF field or with a small detuning of the magnetizing field has been investigated. The regular and chaotic precession regimes near the bifurcation resonance have been revealed. The states of dynamic bistability have been found.

Received: 14.04.2011
Accepted: 01.10.2011

 English version: Physics of the Solid State, 2012, 54:4, 782–789

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