Equilibrium values and dynamics of the net magnetic moment of a system of magnetic dipoles |
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Authors: | A?M?Shuty? |
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Institution: | (1) Department of Physics, Presidency College, Kolkata 700 073, India; |
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Abstract: | Equilibrium states of different systems formed by coupled spherical bodies with dipole magnetic moments have been investigated
using a numerical analysis. The bistable states and the corresponding values of the net magnetic moment are determined for
a number of planar and three-dimensional systems of dipoles, and the conditions providing the existence of orientational configurations
of coupled dipoles involved in the bistability are analyzed. The disturbances of the magnetic moment due to the quasi-static
passage of an additional dipole and the dynamic modes excited by a homogeneous alternating magnetic field and represented
by periodic, quasi-periodic, and chaotic oscillations of the magnetic moment of the system are considered for several types
of systems. The bifurcation diagrams of the dynamic modes are constructed, and the specific features typical of the systems
under consideration are revealed. |
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Keywords: | |
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