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We report field-induced magnetic phase transitions and transport propertiesof antiferromagnetic DyPtBi. We show that DyPtBi hosts a delicate balancebetween two different magnetic ground states, which can be controlled by amoderate magnetic field. Furthermore, it exhibits giant anomalous Hall effect(\sigma_A=1540 (ohm cm)^{-1},\theta_{AHE} = 24%) in a field-induced Type-I spinstructure, presumably attributed to the enhanced Berry curvature associatedwith avoided band-crossings near the Fermi energy and / or non-zero spinchirality. The latter mechanism points DyPtBi towards a rare potentialrealization of anomalous Hall effect in an antiferromagnet withface-center-cubic lattice that was proposed in [Physical Review Letters 87,116801 (2001)].

Field-induced magnetic phase transitions and the resultant giant anomalous Hall effect in antiferromagnetic half-Heusler DyPtBi