Abstract
The responses of the magnetic moment of an isolated nanoparticle having a uniaxial anisotropy and the magnetic moment of a planar lattice made of such nanoparticles to a Gaussian magnetic field pulse are studied by computer simulation. The influence of the anisotropy and the field pulse parameters on the precession dynamics is investigated. The periodic dependence of the response time and the final orientation of the magnetic moments on the pulse duration is revealed and analyzed. For a lattice consisting of different types of nanoparticles, the number of final lattice configurations induced by pulsed magnetization reversal is shown to be larger than the number of the types of nanoparticles more than twofold.
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