Journal Articles Physical Review Letters Year : 2022

Unconventional Robust Spin-Transfer Torque in Noncollinear Antiferromagnetic Junctions

Abstract

Ferromagnetic spin valves and tunneling junctions are crucial for spintronics applications and are one of the most fundamental spintronics devices. Motivated by the potential unique advantages of antiferromagnets for spintronics, we theoretically study here junctions built out of noncollinear antiferromagnets. We demonstrate a large and robust magnetoresistance and spin-transfer torque capable of ultrafast switching between parallel and antiparallel states of the junction. In addition, we show that a new type of self-generated torque appears in the noncollinear junctions.
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Dates and versions

hal-03831757 , version 1 (27-10-2022)

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Srikrishna Ghosh, Aurelien Manchon, Jakub Železný. Unconventional Robust Spin-Transfer Torque in Noncollinear Antiferromagnetic Junctions. Physical Review Letters, 2022, 128 (9), pp.097702. ⟨10.1103/PhysRevLett.128.097702⟩. ⟨hal-03831757⟩
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