Observation of Spin-Splitter Torque in Collinear Antiferromagnetic RuO 2

Observation of Spin-Splitter Torque in Collinear Antiferromagnetic RuO 2 The spin-splitter effect is theoretically predicted to generate an unconventional spin current with x- and z- spin polarization via the spin-split band in antiferromagnets. The generated torque, namely, spin-splitter torque, is effective for the manipulation of magnetization in an adjacent magnetic layer without an external magnetic field for spintronic devices such as MRAM. Here, we study the generation of torque in colli...