1. Magneto-optic and transverse transport properties of non-collinear antiferromagnets
- Author
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Wimmer, Sebastian, Mankovsky, Sergiy, Minár, Ján, Yaresko, Alexander N., and Ebert, Hubert
- Subjects
Condensed Matter - Materials Science - Abstract
Previous studies on the anomalous Hall effect in coplanar non-collinear antiferromagnets are revisited and extended to magneto-optic properties, namely magneto-optic Kerr effect (MOKE) and X-ray magnetic dichroism (XMCD). Starting from group-theoretical considerations the shape of the frequency-dependent conductivity tensor for various actual and hypothetical spin configurations in cubic and hexagonal Mn$_3X$ compounds is determined. Calculated MOKE and X-ray dichroism spectra are used to confirm these findings and to give estimates of the size of the effects. For Mn$_3$IrPt and Mn$_3$PtRh alloys the concentration dependence of the anomalous and spin Hall conductivity is studied in addition.
- Published
- 2019
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