Results 101 to 110 of about 1,505 (193)

Field-free spin–orbit torque switching in ferromagnetic trilayers at sub-ns timescales

Nature Communications
Current-induced spin torques enable the electrical control of the magnetization with low energy consumption. Conventional magnetic random access memory (MRAM) devices rely on spin-transfer torque (STT), this however limits MRAM applications because of ...
Qu Yang, Donghyeon Han, Shishun Zhao, Jaimin Kang, Fei Wang, Sung-Chul Lee, Jiayu Lei, Kyung-Jin Lee, Byong-Guk Park, Hyunsoo Yang   +9 more
doaj   +1 more source

High write endurance up to 1012 cycles in a spin current-type magnetic memory array

AIP Advances, 2019
We demonstrated high write endurance of up to 1012 cycles with a pulse write current of 10 ns in a spin current-type (SC) single magnetic tunnel junction (MTJ) element and 8×8 memory array.
Yohei Shiokawa, Eiji Komura, Yugo Ishitani, Atsushi Tsumita, Keita Suda, Yuji Kakinuma, Tomoyuki Sasaki   +6 more
doaj   +1 more source

Spin-Orbit Torque Driven Multi-State Device for Memory Applications

, 2019
We report the design, fabrication and measurement of a spin-orbit torque (SOT) driven multi-state memory. The multi-state memory is based on a 3-nm thick Ni81Fe19 (Py) patterned in the shape of four intersecting ellipses (octagram).
Alsaui, Abdulmohsen, Alawein, Meshal, Ulan Myrzakhan, Myrzakhan, Ulan, Meshal Alawein, Abdulmohsen Alsaui, Hossein Fariborzi, Fariborzi, Hossein, Amara, Selma, Selma Amara   +9 more
core   +1 more source

In-memory computing with non-volatile spin-orbit-torque magnetoresistive random-access memories

, 2023
LAUREA MAGISTRALEA partire dagli anni '70 i calcolatori si sono affidati alla scalabilità della tecnologia CMOS per ottenere un miglioramento esponenziale delle prestazioni.
Osana, Filip
core  

Enhanced Spin-Orbit Torque via Modulation of Spin Current Absorption

, 2016
The magnitude of spin-orbit torque (SOT), exerted to a ferromagnet (FM) from an adjacent heavy metal (HM), strongly depends on the amount of spin current absorbed in the FM.
Ramaswamy, Rajagopalan, Wu, Yang, Yang, Hyunsoo, Manchon, Aurelien, He, Pan, Legrand, William, Qiu, Xuepeng, Yu, Jiawei   +7 more
core   +1 more source

Comparison of Current Induced Domain Wall Motion Driven by Spin Transfer Torque and by Spin Orbit Torque in Ferrimagnetic GdFeCo Wires

Magnetochemistry
Current-induced domain wall motion (CIDWM) in magnetic wires can be driven by spin transfer torque (STT) originating from transferring angular momentums of spin-polarized conducting electrons to the magnetic DW and can be driven by spin orbit torque (SOT)
Pham Van Thach, Satoshi Sumi, Kenji Tanabe, Hiroyuki Awano   +3 more
doaj   +1 more source

Unconventional angular dependence of spin-orbit torque-induced harmonic Hall resistance in Pt/YIG bilayers

npj Spintronics
Spin-orbit torque (SOT), arising from spin-orbit coupling-induced spin currents, provides efficient control of magnetization. SOT characterization involving harmonic Hall resistances is typically done in low-current regimes, distinct from high-current ...
Takayuki Shiino, Phuoc Cao Van, Jong-Guk Choi, Geunwoo Kim, Jong-Ryul Jeong, Byong-Guk Park   +5 more
doaj   +1 more source

Oscillatory spin-orbit torque switching induced by field-like torques

, 2018
Deterministic magnetization switching using spin-orbit torque (SOT) has recently emerged as an efficient means to electrically control the magnetic state of ultrathin magnets.
Hyunsoo Yang, Cai, K., Yang, H., Rajagopalan Ramaswamy, Shalabh Srivastava, Srivastava, S., Jaesung Son, Xuepeng Qiu, Rahul Mishra, Yoon, J., Ramaswamy, R., Qiu, X., Jungbum Yoon, Lee, J.M., Jae Hyun Kwon, Jong Min Lee, Kaiming Cai, Kwon, J.H., Son, J., Mishra, R.   +19 more
core   +1 more source

Spin-orbit torques of three spin polarizations in magnetic trilayers

, 2023
Three spin polarizations of spin-orbit torques are theoretically available in ferromagnet/normal metal/ferromagnet trilayers. We report the quantification of spin-orbit torques of these spin polarizations via harmonic Hall voltage measurement ...
Park, Jae Yeol, Kang, Jaimin, Choi, Gaeun, Kim, Seok-Jong, Ryu, Jeongchun, Park, Byong-Guk   +5 more
core  

Field-free spin–orbit torque devices for logic and neural network applications

APL Machine Learning
Robust field-free spin–orbit torque (SOT) switching plays an essential role in realizing practical SOT-based magnetic memories and logic devices. Leveraging the strong interlayer Dzyaloshinskii–Moriya interaction, field-free SOT switching is achieved ...
Chun-Yi Lin, Jui-Yu Hsieh, Po-Chuan Wang, Chia-Chin Tsai, Chi-Feng Pai   +4 more
doaj   +1 more source