  Berry phase and Berry curvature play a key role in the development of
topology in physics and do contribute to the transport properties in solid
state systems. In this paper, we report the finding of novel nonzero Hall
effect in topological material ZrTe5 flakes when in-plane magnetic field is
parallel and perpendicular to the current. Surprisingly, both symmetric and
antisymmetric components with respect to magnetic field are detected in the
in-plane Hall resistivity. Further theoretical analysis suggests that the
magnetotransport properties originate from the anomalous velocity induced by
Berry curvature in a tilted Weyl semimetal. Our work not only enriches the Hall
family but also provides new insights into the Berry phase effect in
topological materials.
