On possible conical singularities in magneto-optics |
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Authors: | V. S. Merkulov |
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Affiliation: | 1.Research and Applied Center of Materials Science,National Academy of Sciences of Belarus,Minsk,Belarus |
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Abstract: | The conditions for the appearance of conical singularities in a magnetically ordered crystal in the presence of dichroism, birefringence, and magneto-optical activity have been considered. The possibility of the existence of singularities such as a nodal point, cusp, and point of contact has been demonstrated. The relation of the topological index of the closed singular line to the indices of the C points lying inside the contour has been revealed. Estimates have been made for the YIG:Bi crystal. |
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