Anisotropic anomalous Hall effect in triangular itinerant ferromagnet Fe3GeTe2

Magnetic frustrated materials are of great interest for their novel spin-dependent transport properties. We report an anisotropic anomalous Hall effect in the triangular itinerant ferromagnet ${\mathrm{Fe}}_{3}{\mathrm{GeTe}}_{2}$. When the current flows along the $ab$ plane, ${\mathrm{Fe}}_{3}{\mathrm{GeTe}}_{2}$ exhibits the conventional anomalous Hall effect below the Curie temperature ${T}_{c}$, which can be depicted by Karplus--Luttinger theory. On the other hand, the topological Hall effect shows up below ${T}_{c}$ with current along the $c$ axis. The enhancement of Hall resistivity can be attributed to the chiral effect during the spin-flop process.