  The ordinary Hall effect is driven by the Lorentz force, while its anomalous
counterpart occurs in ferromagnets. Here we show that the Berry curvature
monopole of non-magnetic 2D spin-3/2 holes leads to a novel Hall effect linear
in an applied in-plane magnetic field B_x. There is no Lorentz force hence no
ordinary Hall effect, while all disorder contributions vanish to leading order
in B_x. This intrinsic phenomenon, which we term the anomalous planar Hall
effect (APHE), provides a non-quantized footprint of topological transport
directly accessible in p-type semiconductors.
