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.
@article{arxiv.2011.09481,
title = {Generating a topological anomalous Hall effect in a non-magnetic conductor},
author = {James H. Cullen and Pankaj Bhalla and Elizabeth Marcellina and Alexander R. Hamilton and Dimitrie Culcer},
journal= {arXiv preprint arXiv:2011.09481},
year = {2021}
}