Recent progress in the voltage-controlled magnetic anisotropy effect and the challenges faced in developing voltage-torque MRAM

T Nozaki, T Yamamoto, S Miwa, M Tsujikawa, M Shirai… - Micromachines, 2019 - mdpi.com
The electron spin degree of freedom can provide the functionality of “nonvolatility” in
electronic devices. For example, magnetoresistive random access memory (MRAM) is …

Developments in voltage-controlled subnanosecond magnetization switching

T Yamamoto, R Matsumoto, T Nozaki… - Journal of Magnetism …, 2022 - Elsevier
We review the current status of research on magnetization switching that utilizes the voltage-
controlled magnetic anisotropy (VCMA) effect. In particular, we focus on the magnetization …

Voltage-controlled spintronic stochastic neuron based on a magnetic tunnel junction

J Cai, B Fang, L Zhang, W Lv, B Zhang, T Zhou… - Physical Review …, 2019 - APS
Stochastic units based on magnetic tunnel junctions have shown a high energy-efficient
pathway to perform neuromorphic computing. We propose a voltage-controlled spintronic …

Progress and Application Perspectives of Voltage‐Controlled Magnetic Tunnel Junctions

Y Shao, P Khalili Amiri - Advanced Materials Technologies, 2023 - Wiley Online Library
This article discusses the current state of development, open research opportunities, and
application perspectives of electric‐field‐controlled magnetic tunnel junctions that use the …

Threshold current of field-free perpendicular magnetization switching using anomalous spin-orbit torque

T Zhang, C Wan, X Han - Physical Review B, 2023 - APS
Spin-orbit torque (SOT) is a promising technique for next-generation magnetic random-
access memory. Recent experiments have shown that materials with low-symmetry …

Route towards efficient magnetization reversal driven by voltage control of magnetic anisotropy

RA One, H Béa, S Mican, M Joldos, PB Veiga… - Scientific Reports, 2021 - nature.com
The voltage controlled magnetic anisotropy (VCMA) becomes a subject of major interest for
spintronics due to its promising potential outcome: fast magnetization manipulation in …

Write error rate in bias-magnetic-field-free voltage-induced switching in a conically magnetized free layer

R Matsumoto, H Imamura - Physical Review Applied, 2022 - APS
Write error rate (WER) in voltage-induced magnetization switching of a conically magnetized
free layer with an elliptic cylinder shape is numerically calculated on the basis of the …

Substantial reduction of write-error rate for voltage-controlled magnetoresistive random access memory by in-plane demagnetizing field and voltage-induced negative …

R Matsumoto, S Yuasa, H Imamura - Journal of Magnetism and Magnetic …, 2023 - Elsevier
Voltage-controlled magnetoresistive random access memory (VC-MRAM) based on voltage-
induced dynamic switching in magnetic tunnel junctions (MTJs) is a promising ultimate non …

Ar+ ion irradiation of magnetic tunnel junction multilayers: impact on the magnetic and electrical properties

BMS Teixeira, AA Timopheev, N Caçoilo… - Journal of Physics D …, 2020 - iopscience.iop.org
The impact of 400 keV Ar+ irradiation on the magnetic and electrical properties of in-plane
magnetized magnetic tunnel junction (MTJ) stacks was investigated by ferromagnetic …

Evolution of strong second-order magnetic anisotropy in Pt/Co/MgO trilayers by post-annealing

HK Gweon, SH Lim - Applied Physics Letters, 2020 - pubs.aip.org
In this study, the first-(K 1) and second-order (K 2) magnetic anisotropies are investigated as
a function of post-annealing temperature (T a) in Pt/Co/MgO heterostructures. We find that …