  Non-collinear antiferromagnetic Weyl semimetals, combining the advantages of
a zero stray field and ultrafast spin dynamics as well as a large anomalous
Hall effect and the chiral anomaly of Weyl fermions, have attracted extensive
interests. However, the all-electrical control of such systems at room
temperature, a crucial step toward practical applications, has not been
reported. Here using a small writing current of around 5*10^{6} A/cm^{2}, we
realize the all-electrical current-induced deterministic switching of the
non-collinear antiferromagnet Mn3Sn with a strong readout signal at room
temperature in the Si/SiO2/Mn3Sn/AlOx structure, without external magnetic
field and injected spin current. Our simulations reveal that the switching is
originated from the current-induced intrinsic non-collinear spin-orbit torques
in Mn3Sn itself. Our findings pave the way for the development of topological
antiferromagnetic spintronics.
