1. Two-terminal current-in-plane giant magnetoresistance devices driven by the spin–orbit torque.
- Author
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Dong, Yiqing, Xu, Teng, and Jiang, Wanjun
- Subjects
- *
GIANT magnetoresistance , *SPIN valves , *TORQUE , *MAGNETORESISTANCE , *SPIN-orbit interactions - Abstract
Spin valve effect driven by current-induced spin–orbit torques can help to realize electrically controllable and miniaturized two terminal spintronic devices. Here, we show that in a perpendicularly magnetized Fe 1 − x 1 Tb x 1 /Pt/ Fe 1 − x 2 Tb x 2 spin-valve multilayer, spin currents from dual surfaces of the inserted Pt layer can be used to generate spin torques that can separately switch the adjacent ferrimagnetic Fe1−xTbx layers. In a two-terminal device, we further show that the accompanied parallel and anti-parallel magnetization configurations between the two Fe1−xTbx layers can lead to the observation of the current-in-plane giant magnetoresistance (CIP-GMR). Our results demonstrate that the current-induced spin–orbit torques can be implemented into two-terminal spin-torque devices, which can be electrically read out by the CIP-GMR. The present study could be important for designing miniaturized spintronic devices. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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