Anomalous Hall effect of ferromagnetic Fe3Sn2 single crystal with geometrically frustrated kagome lattice
Abstract
The anomalous Hall effect is investigated for ferromagnetic Fe3Sn2 single crystal with geometrically frustrated kagome bilayer of Fe. The scaling behavior between anomalous Hall resistivity rhoxyA and longitudinal resistivity rhoxx is quadratic and further analysis implies that the AHE in Fe3Sn2 single crystal should be dominated by the intrinsic Karplus-Luttinger mechanism rather than extrinsic skew-scattering or side-jump mechanisms. Moreover, there is a sudden jump of anomalous Hall conductivity sigmaxyA appearing at about 100 K where the spin-reorientation transition from the c axis to the ab plane is completed. This change of sigmaxyA might be related to the evolution of Fermi surface induced by the spin-reorientation transition.
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