Abstract
A dynamic calculation of a magnetic bubble domain which is rigorous within the scheme ofthe domain wall theory is carried out. The bubble base is approximated by a polygon. When bubble deformation is described with appropriate coordinates, the equations of wall motion representing dynamic force balance on the vertices of the polygon are reduced to a set of in-dependent equations with the degree of freedom equal to the number of the vertices. The stability of the solution is improved considerably by taking the effect of the movement of the neighbour vertices into consideration when the wall force is evaluated. The principle of the calculation and results showing the validity of the calculation are given.
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