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VOLUME 123 (2026) | ISSUE 3 | PAGE 234
Beyond germanides: anomalous Hall effect in the silicide LaMn2Si2
DOI: 10.7868/S3034576626020116
Abstract
By combining symmetry analysis and direct density functional calculations including the spin-orbit coupling, we demonstrate that anomalous Hall effect can be observed in not only germanides with general formula RMn2Ge2, where R is a rare-earth ion or Y. Our calculations predict a large anomalous Hall conductivity in LaMn2Si2, with a non-zero \sigma_{xy}^{\mathrm{AH}} component of -360 S/cm, accompanied by a pronounced magneto-optical response. Remarkably, electron doping of LaMn2Si2 is expected to substantially enhance the Hall conductivity, with values reaching up to -650 S/cm. These results suggest that silicides with general formula RM2Si2 can be an interesting platform for studying anomalous Hall effect.