  Specific antiferromagnetic (AF) spin configurations generate large anomalous
Hall effects (AHEs) even at zero magnetic field through nonvanishing Berry
curvature in momentum space. In addition to restrictions on AF structures,
suitable control of AF domains is essential to observe this effect without
cancellations among its domains; therefore, compatible materials remain
limited. Here we show that an orthorhombic noncollinear AF material, NbMnP,
acquired AF structure-based AHE and controllability of the AF domains.
Theoretical calculations indicated that a large Hall conductivity of $\sim230$
$\Omega^{-1}$cm$^{-1}$ originated from the AF structure of NbMnP. Symmetry
considerations explained the production of a small net magnetization, whose
anisotropy enabled the generation and cancellation of the Hall responses using
magnetic fields in different directions. Finally, asymmetric hysteresis in
NbMnP shows potential for development of controllability of responses in AF
materials.
