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CrSb is an attractive material for room-temperature antiferromagneticspintronic applications because of its high N\'{e}el temperature $\sim$700 Kand semi-metallic character. We study the magnetic properties of CrSb bilayerson few-layer topological insulator thin films using \emph{ab initio} densityfunctional theory. We find that the intrinsic parts of the total anomalous Hallconductivities of the thin films are non-zero, and approximately quantized. TheN\'{e}el temperature of CrSb bilayers on few-layer topological insulator thinfilms is found to be approximately two times larger than that of an isolatedCrSb thin film. Due to the low Fermi level density of states of CrSb, Hallquantization might be achievable by introducing disorder. CrSb bilayers ontopological insulator surfaces are therefore attractive candidates forhigh-temperature quantum anomalous Hall effects.

Large Anomalous Hall Effect in Topological Insulators Proximitized by Collinear Antiferromagnets