Results 21 to 30 of about 900,366 (207)

Anomalous sign inversion of spin-orbit torque in ferromagnetic/nonmagnetic bilayer systems due to self-induced spin-orbit torque [PDF]

open access: yes, 2022
Self-induced spin-orbit torques (SI-SOTs) in ferromagnetic (FM) layers have been overlooked when estimating the spin Hall angle (SHA) of adjacent nonmagnetic (NM) layers.
Shigematsu, Ei   +5 more
core   +1 more source

Proton irradiation effects on spin orbit-torque and spin transfer-torque magnetic tunnel junctions

open access: yes, 2021
International audienceThis paper aims to investigate proton irradiation effects on a new class of emerging devices: Perpendicular-Magnetic Anysotropy (PMA) Spin Orbit (SOT) Torque Magnetic Tunnel Junctions (MTJ)
Coi, Odilia   +5 more
core   +1 more source

Critical switching current of a perpendicular magnetic tunnel junction owing to the interplay of spin-transfer torque and spin-orbit torque

open access: yes, 2021
Using the linearized Landau-Lifshitz-Gilbert (LLG) equation in the rotation coordinate, we calculate the critical switching current density of a perpendicular magnetic tunnel junction (MTJ), where magnetization switching is achieved by the interplay of ...
Shin, Mincheol   +2 more
core   +1 more source

Theoretical Study of Field-Free Switching in PMA-MTJ Using Combined Injection of STT and SOT Currents

open access: yesMicromachines, 2021
Field-free switching in perpendicular magnetic tunnel junctions (P-MTJs) can be achieved by combined injection of spin-transfer torque (STT) and spin-orbit torque (SOT) currents. In this paper, we derived the relationship between the STT and SOT critical
Shaik Wasef, Hossein Fariborzi
doaj   +1 more source

Spin–orbit torque generated by spin–orbit precession effect in Py/Pt/Co tri-layer structure

open access: yesAPL Materials, 2020
In this report, current-induced spin–orbit torques (SOTs) in a permalloy (Py)/Pt/Co tri-layer system are investigated. In addition to the conventional SOTs generated from the spin Hall effect in the Pt layer, we observed a distinct existence of ...
Y. Hibino   +3 more
doaj   +1 more source

Spin Orbit Torque Tunable Skyrmion Neuromorphic Devices

open access: yes, 2023
Skyrmionic devices are promising candidates for energy efficient and highly integrated data storage and computing applications, owing to their small size, topological protection, and low drive current. In this abstract we propose novel spin orbit torque (
Li, Xiaohang   +4 more
core   +1 more source

Multilevel states driven by spin-orbit torque in a P-composition graded (Ga,Mn)(As,P) film

open access: yesAIP Advances, 2023
We have studied spin-orbit torque (SOT) magnetization switching in a (Ga,Mn)(As,P) film with vertically-graded magnetic anisotropy. The magnetization switching chirality during current scans reveals that strain-induced Dresselhaus-type spin-orbit field ...
Kyung Jae Lee   +5 more
doaj   +1 more source

Hardware Acceleration of Stochastic Neural Networks Enabled by Bit-Cell Level Co-Design of Magnetic Tunnel Junctions. [PDF]

open access: yesAdv Sci (Weinh)
An MTJ‐based probabilistic processing‐in‐memory architecture unites nonvolatile storage, local entropy generation, and stochastic computation within each memory cell. Stored multi‐bit weights are converted directly into programmable stochastic bitstreams, enabling neural‐network inference, adaptive Ising optimization, and uncertainty‐aware Bayesian ...
Wang Q   +6 more
europepmc   +2 more sources

Validity of DFT-based spin-orbit torque calculation for perpendicular magnetic anisotropy in iron thin films

open access: yesAIP Advances, 2023
In this study, the validity of our DFT-based self-developed JunPy+SOT calculation method has been rigorously confirmed by the perpendicular magnetic anisotropy (PMA) induced effective magnetic anisotropy field of 5.6 kOe in a 1.5 nm-thick iron thin film.
Bao-Huei Huang, Yi-Feng Lai, Yu-Hui Tang
doaj   +1 more source

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