Abstract
The energetic model of ferromagnetic hysteresis calculates the magnetic state of anisotropic materials by minimizing the total energy of the magnetic structure. Magnetocrystalline anisotropy, shape anisotropy and strain energy give the easy directions for the domains. All reversible contributions of the domain wall movements are described by a reversible field strength. The domain walls move reversibly until an individual Barkhausen jump occurs. From this point the irreversible losses start to accumulate. At a point of field reversal the magnetic state of the material is classified by changing the parameters of the irreversible energy in dependence of the so far covered irreversible jumps. The physical constants of this model are derived from anisotropic energy contributions, initial susceptibility, coercivity, and saturation magnetization.
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