  Magnetic topological semimetals are the manifestations of interplay between
electronic and magnetic phases of the matter, leading to peculiar
characteristics such as the anomalous Hall effect (AHE) and topological Hall
effect (THE). Mn$_3$Sn is a time-reversal symmetry broken (TRS) magnetic Weyl
semimetal showing topological characteristics within the Kagome lattice
network. In this study, for the first time, we uncover large and pure
topological Hall effect in Mn$_3$Sn at the room temperature, which is gradually
suppressed by Fe doping at the Mn site of Mn$_{3-x}$Fe$_x$Sn. We further
identify that the topological properties of these systems are highly
anisotropic. These findings promise the realization of potential topotronic
applications at room temperature.
