We report field-induced magnetic phase transitions and transport properties of antiferromagnetic DyPtBi. We show that DyPtBi hosts a delicate balance between two different magnetic ground states, which can be controlled by a moderate magnetic field. Furthermore, it exhibits giant anomalous Hall effect $\left({\sigma }^A=1540{\mathrm{\Omega }}^{-1}\mathrm{c}{\mathrm{m}}^{-1},{\theta }_{\mathrm{AHE}}=24\%\right)$ in a field-induced type-I spin structure, presumably attributed to the enhanced Berry curvature associated with avoided band crossings near the Fermi energy and/or nonzero spin chirality. The latter mechanism points DyPtBi towards a rare potential realization of anomalous Hall effect in an antiferromagnet with face-centered-cubic lattice that was proposed in [Physical Review Letters 87, 116801 (2001)].

• Received 24 May 2020
• Accepted 25 August 2020

DOI:https://doi.org/10.1103/PhysRevB.102.094424