Review of magnetic tunnel junctions for stochastic computing

BR Zink, Y Lv, JP Wang - IEEE Journal on Exploratory Solid …, 2022 - ieeexplore.ieee.org
Modern computing schemes require large circuit areas and large energy consumption for
neuromorphic computing applications, such as recognition, classification, and prediction …

Intrinsic optimization using stochastic nanomagnets

B Sutton, KY Camsari, B Behin-Aein, S Datta - Scientific reports, 2017 - nature.com
This paper draws attention to a hardware system which can be engineered so that its
intrinsic physics is described by the generalized Ising model and can encode the solution to …

Nanosecond true-random-number generation with superparamagnetic tunnel junctions: Identification of Joule heating and spin-transfer-torque effects

L Schnitzspan, M Kläui, G Jakob - Physical Review Applied, 2023 - APS
This work investigates nanosecond superparamagnetic switching in 50-nm-diameter in-
plane magnetized magnetic tunnel junctions (MTJs). Due to the small in-plane uniaxial …

Low-barrier nanomagnets as p-bits for spin logic

R Faria, KY Camsari, S Datta - IEEE Magnetics Letters, 2017 - ieeexplore.ieee.org
It has recently been shown that a suitably interconnected network of tunable telegraphic
noise generators or “p-bits” can be used to perform even precise arithmetic functions like a …

Energy-efficient stochastic computing with superparamagnetic tunnel junctions

MW Daniels, A Madhavan, P Talatchian, A Mizrahi… - Physical review applied, 2020 - APS
Superparamagnetic tunnel junctions (SMTJs) have emerged as a competitive, realistic
nanotechnology to support novel forms of stochastic computation in CMOS-compatible …

[HTML][HTML] Superparamagnetic perpendicular magnetic tunnel junctions for true random number generators

B Parks, M Bapna, J Igbokwe, H Almasi, W Wang… - AIP Advances, 2018 - pubs.aip.org
Superparamagnetic perpendicular magnetic tunnel junctions are fabricated and analyzed
for use in random number generators. Time-resolved resistance measurements are used as …

Magnetic stray fields in nanoscale magnetic tunnel junctions

S Jenkins, A Meo, LE Elliott… - Journal of Physics D …, 2019 - iopscience.iop.org
The magnetic stray field is an unavoidable consequence of ferromagnetic devices and
sensors leading to a natural asymmetry in magnetic properties. Such asymmetry is …

Size and voltage dependence of effective anisotropy in sub-100-nm perpendicular magnetic tunnel junctions

SK Piotrowski, M Bapna, SD Oberdick, SA Majetich… - Physical Review B, 2016 - APS
Magnetic tunnel junctions with perpendicular magnetic anisotropy are investigated using a
conductive atomic force microscope. The 1.23-nm Co 40 Fe 40 B 20 recording layer …

Atomistic investigation of the temperature and size dependence of the energy barrier of CoFeB/MgO nanodots

A Meo, R Chepulskyy, D Apalkov… - Journal of Applied …, 2020 - pubs.aip.org
The balance between low power consumption and high efficiency in memory devices is a
major limiting factor in the development of new technologies. Magnetic random access …

Spin-orbit-torque switching in 20-nm perpendicular magnetic tunnel junctions

M Bapna, B Parks, SD Oberdick, H Almasi, W Wang… - Physical Review …, 2018 - APS
Magnetization switching utilizing the spin-orbit torque of heavy metals is a promising
alternative to spin-transfer torque for a faster and more energy-efficient write mechanism for …