12:00 PM - 12:15 PM
▼ [20a-E216-12] Spin-orbit torque induced switching of antiferromagnet/non-magnet metallic structure
Keywords:Antiferromagnetic spintronics, Spin-orbit Torques
Utilization of antiferromagnets (AFMs) as active components of spintronic devices offers unique advantages complementing current ferromagnet (FM) based spintronic architectures. The capability of electrical writing and reading is crucial for the development of AFM-based spintronic devices. One of the possible candidates satisfying the requirement is Mn-based metallic alloys. In our previous work, we have demonstrated magneto-resistive effects in an AFM/heavy-metal (HM) PtMn/Pt structure, which offers electrical reading of stored information without auxiliary FMs. Here, we demonstrate electrical writing of PtMn/Pt structure from dc down to µs-regime. Comparison of switching characteristics on AFM/HM with control structures suggests switching of AFM originating from spin-orbit torques under the injection of current. A combination of electrical measurements with X-ray magnetic imaging shows a reorientation of antiferromagnetic Néel vector upon the application of currents.