Abstract
The dynamic magnetic susceptibility of single-domain iron particles with magnetic anisotropy in the form of the direction of easy magnetization is calculated under conditions of stochastic resonance with allowance for a constant magnetic field perpendicular to the direction of particle easy magnetization. Calculations are carried out in the approximation of discrete orientations based on the guiding equation for the Kramers above-the-barrier transition rates of the particle magnetic moment vector. It is demonstrated that changing the constant field strength, the internal noise level in the system can be controlled, for example, to obtain a maximum response to an external radio-frequency perturbation.
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