Single-nanometer CoFeB/MgO magnetic tunnel junctions with high-retention and high-speed capabilities

J Igarashi, B **nai, K Watanabe, T Shinoda… - npj Spintronics, 2024 - nature.com
Making magnetic tunnel junctions (MTJs) smaller while meeting performance requirements
is critical for future electronics with spin-transfer torque magnetoresistive random access …

Magnetisation switching dynamics induced by combination of spin transfer torque and spin orbit torque

A Meo, J Chureemart, RW Chantrell, P Chureemart - Scientific reports, 2022 - nature.com
We present a theoretical investigation of the magnetisation reversal process in CoFeB-
based magnetic tunnel junctions (MTJs). We perform atomistic spin simulations of …

Critical switching current density of magnetic tunnel junction with shape perpendicular magnetic anisotropy through the combination of spin-transfer and spin-orbit …

DH Kang, M Shin - Scientific reports, 2021 - nature.com
Recently, magnetic tunnel junctions (MTJs) with shape perpendicular magnetic anisotropy
(S-PMA) have been studied extensively because they ensure high thermal stability at …

Fast switching down to 3.5 ns in sub-5-nm magnetic tunnel junctions achieved by engineering relaxation time

B **nai, J Igarashi, T Shinoda… - 2021 IEEE …, 2021 - ieeexplore.ieee.org
We show fast switching down to 3.5 ns while maintaining high data retention in sub-5-nm
ultra-small magnetic tunnel junctions (MTJs) using multilayered ferromagnets (FMs). We …

Temperature dependence of intrinsic critical current in perpendicular easy axis CoFeB/MgO magnetic tunnel junctions

Y Takeuchi, ECI Enobio, B **nai, H Sato… - Applied Physics …, 2021 - pubs.aip.org
Current induced magnetization switching in CoFeB/MgO-based magnetic tunnel junctions
(MTJs) with a perpendicular easy axis is studied above room temperature. The intrinsic …

Magnetization reversal via domain wall motion in vertical high-aspect-ratio nanopillar with two magnetic junctions

S Honda, Y Sonobe - Journal of Physics D: Applied Physics, 2024 - iopscience.iop.org
A vertical ferromagnetic (FM) nanopillar can be used as magnetic memory owing to
characteristics such as its high storage capacity and high thermal stability. The …

On the temperature-dependent characteristics of perpendicular shape anisotropy-spin transfer torque-magnetic random access memories

W Zhang, Z Tong, Y ** Layers on Thermal Stability of CoFeB/MgO Frames at Various Temperatures
B Kang, YH Hwang, YJ Kim, JS Lee, SH Song, S Lee… - Applied Sciences, 2024 - mdpi.com
The utilization of CoFeB thin films in spintronic devices has attracted significant attention due
to their exceptional magnetic properties, which include high saturation magnetization and …

Coherent magnetization reversal of a cylindrical nanomagnet in shape-anisotropy magnetic tunnel junctions

B **nai, J Igarashi, K Watanabe, ECI Enobio… - Applied Physics …, 2021 - pubs.aip.org
A shape-anisotropy magnetic tunnel junction (MTJ) holds promise for its scaling into single-
digit nanometers while possessing high data-retention capability. Understanding …

Temperature dependence of the properties of stochastic magnetic tunnel junction with perpendicular magnetization

H Kaneko, R Ota, K Kobayashi, S Kanai… - Applied Physics …, 2024 - iopscience.iop.org
Stochastic magnetic tunnel junctions (s-MTJs) are attracting attention as key elements for
spintronics-based probabilistic (p-) computers. The performance of p-computers is governed …