The relation between crystal and magnetic defects

Disclinations in collinear antiferromagnets and cubic ferromagnets are shown to generate linear magnetic defects. These and similar crystallomagnetic singularities are considered from the point of view of the topological theory of defects in ordered media. It is shown that in the case of a cubic magnetic the orderparameter space for a crystallomagnetic medium is not a direct product of order-parameter spaces for continuous magnetic and crystalline nonmagnetic medium.

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