Room-Temperature Antiferromagnetic Resonance and Inverse Spin-Hall Voltage in Canted Antiferromagnets

We study theoretically and experimentally the spin pumping signals induced by resonance of canted antiferromagnets with Dzyaloshinskii-Moriya interaction demonstrate that they can generate easily observable inverse spin-Hall voltages. Using a bilayer hematite/heavy metal as model system, we measure at room temperature antiferromagnetic an associated voltage, large in collinear antiferromagnets. As expected for coherent pumping, observe sign voltage provides direct information about mode handedness deduced comparing hematite, chromium oxide ferrimagnet yttrium-iron garnet. Our results open new means to detect currents terahertz frequencies functionalizing low damping moments.