The response of the magnetic nanoparticles lattice to a Gaussian magnetic field pulse

Abstract

The paper investigates the response of homogeneous and binary planar lattices of magnetic nanoparticles with uniaxial anisotropy to the action of a short Gaussian magnetic field pulse. It is shown that the influence of the dipole–dipole interaction and the presence of two types of nanoparticles leads to modulation of the response amplitude and its decrease. A complex periodic dependence of the amplitude and duration of the system response on the duration of the pulse has been revealed. The research shows the possibility of a pulse-induced magnetization reversal of the entire lattice or its individual parts upon defining the lattice composition and the parameters of the bias field and the effective pulse. • The response of a plane lattice of uniaxial magnetic nanoparticles to a Gaussian magnetic field pulse. • The dynamics of lattices with two alternating types of nanoparticles with different magnetic moment. • The reversal magnetization of various parts of the magnetic nanoparticles lattice.