Magnetic domain structure of thin uniaxial crystals

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Abstract
The magnetic domain structure of thin ferromagnetic crystals with uniaxial anisotropy is investigated theoretically. The theory enables the equilibrium domain width and the direction of domain magnetization, as well as the width and energy of the domain walls, to be calculated for a foil of given thickness and crystallographic orientation. Detailed results are calculated for cobalt, and the results compared with measurements obtained by Lorentz microscopy. The agreement is found to be satisfactory.