Abstract
A phenomenological model is outlined that connects the effects of the domain structure stability with respect to an external magnetic field with those of the domain structure temperature stability i.e. with the temperature hysteresis of the geometry of stripe domain structure. The previously observed fact that the magnitude of the applied field, H s, needed for irreversibly moving domain walls depends on the domain patterns geometry and that H s is maximum and equals to the domain wall coercivity H c only when the domain structure corresponds to the total energy minimum is described theoretically. Formulae obtained from modelling the effective pressures on the domain walls were computed using the magnetic parameters of an epitaxial garnet layer and good agreement of the theory with experiment was found.
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