Abstract
A study about magnetostatic modes in a hollow sphere of inner radius r1 and outer radius r2, is presented. The eigenfrequencies are represented as a function of r1/r2 (the aspect ratio). Walker's solution for the sphere was recovered in the representation obtained by Plumier. The equations for hollow spheres correspond to the results obtained by micromagnetic simulation in these geometries. The results presented here are significant for future experimental investigations and technological applications.
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