Integer factorization using stochastic magnetic tunnel junctions

WA Borders, AZ Pervaiz, S Fukami, KY Camsari… - Nature, 2019 - nature.com
Conventional computers operate deterministically using strings of zeros and ones called bits
to represent information in binary code. Despite the evolution of conventional computers into …

Scaling magnetic tunnel junction down to single-digit nanometers—Challenges and prospects

B **nai, K Watanabe, S Fukami, H Ohno - Applied physics letters, 2020 - pubs.aip.org
Magnetic tunnel junction (MTJ), a spintronics device, has been intensively developed in the
past couple of decades because of its high potential in terms of non-volatility, fast operation …

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 …

Local bifurcation with spin-transfer torque in superparamagnetic tunnel junctions

T Funatsu, S Kanai, J Ieda, S Fukami, H Ohno - Nature communications, 2022 - nature.com
Modulation of the energy landscape by external perturbations governs various thermally-
activated phenomena, described by the Arrhenius law. Thermal fluctuation of nanoscale …

Voltage-controlled domain wall motion-based neuron and stochastic magnetic tunnel junction synapse for neuromorphic computing applications

AH Lone, S Amara, H Fariborzi - IEEE Journal on Exploratory …, 2021 - ieeexplore.ieee.org
This work discusses the proposal of a spintronic neuromorphic system with spin orbit torque-
driven domain wall motion (DWM)-based neurons and synapses. We propose a voltage …

Temperature Dependence Strategy for Achieving Enhanced Reflow-Capable MRAM with a Multi-Interface Structure

Y Sun, F Meng, Y Wang - ACS Applied Electronic Materials, 2024 - ACS Publications
In terms of practical applications, a performance bottleneck with spin-transfer-torque
magnetic random-access memory (STT-MRAM) devices is evident at varying temperatures …

Thermal stability of non-collinear antiferromagnetic Mn3Sn nanodot

Y Sato, Y Takeuchi, Y Yamane, JY Yoon… - Applied Physics …, 2023 - pubs.aip.org
D0 19-Mn 3 Sn, an antiferromagnet having a non-collinear spin structure in a kagome lattice,
has attracted great attention owing to various intriguing properties such as large anomalous …

Novel quad-interface MTJ technology and its first demonstration with high thermal stability factor and switching efficiency for STT-MRAM beyond 2X nm

K Nishioka, H Honjo, S Ikeda… - … on Electron Devices, 2020 - ieeexplore.ieee.org
We have proposed a novel quad-interface magnetic tunnel junction (MTJ) technology which
brings forth an increase of both thermal stability factor Δ and switching efficiency defined as …

Temperature dependence of the energy barrier in X/1X nm shape-anisotropy magnetic tunnel junctions

J Igarashi, B **nai, V Desbuis, S Mangin… - Applied Physics …, 2021 - pubs.aip.org
Shape-anisotropy magnetic tunnel junctions (MTJs) are attracting much attention as a high-
performance nonvolatile spintronic device in the X/1X nm regime. In this study, 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 …