Single skyrmion true random number generator using local dynamics and interaction between skyrmions

K Wang, Y Zhang, V Bheemarasetty, S Zhou… - Nature …, 2022 - nature.com
Magnetic skyrmions are of great interest to both fundamental research and applications in
post-von-Neumann computing devices. The successful implementation of skyrmionic …

Energy-efficient superparamagnetic Ising machine and its application to traveling salesman problems

J Si, S Yang, Y Cen, J Chen, Y Huang, Z Yao… - Nature …, 2024 - nature.com
The growth of artificial intelligence leads to a computational burden in solving non-
deterministic polynomial-time (NP)-hard problems. The Ising computer, which aims to solve …

Microwave-modulated spintronic stochastic neuron based on a magnetic tunnel junction

Y Luo, H Tu, L Zhang, S Li, R Li, J Cai, B Zhang… - Physical Review …, 2023 - APS
The stochastic switching behavior of magnetic tunnel junctions (MTJs) has been proven to
be suitable for low-power neuromorphic computing. In this work, we demonstrate that the …

Programmable electrical coupling between stochastic magnetic tunnel junctions

S Gibeault, TN Adeyeye, LA Pocher, DP Lathrop… - Physical Review …, 2024 - APS
Superparamagnetic tunnel junctions (SMTJs) are promising sources of randomness for
compact and energy-efficient implementations of probabilistic computing techniques …

Electrical coupling of superparamagnetic tunnel junctions mediated by spin-transfer-torques

L Schnitzspan, M Kläui, G Jakob - Applied Physics Letters, 2023 - pubs.aip.org
In this work, the effect of electrical coupling on stochastic switching of two in-plane
superparamagnetic tunnel junctions (SMTJs) is studied, using experimental measurements …

Double-free-layer stochastic magnetic tunnel junctions with synthetic antiferromagnets

K Selcuk, S Kanai, R Ota, H Ohno, S Fukami… - Physical Review …, 2024 - APS
Stochastic magnetic tunnel junctions (SMTJs) using low-barrier nanomagnets have shown
promise as fast, energy-efficient, and scalable building blocks for probabilistic computing …

Nanosecond stochastic operation in perpendicular superparamagnetic tunnel junctions

L Soumah, L Desplat, NT Phan, ASE Valli… - arXiv preprint arXiv …, 2024 - arxiv.org
We demonstrate the miniaturization of perpendicularly magnetized superparamagnetic
tunnel junctions (SMTJs) down to 50 nm in diameter. We experimentally show stochastic …

External-field-robust stochastic magnetic tunnel junctions using a free layer with synthetic antiferromagnetic coupling

K Kobayashi, K Hayakawa, J Igarashi, WA Borders… - Physical Review …, 2022 - APS
The stochastic magnetic tunnel junction (MTJ), the resistance of which fluctuates in time
between low and high states under thermal fluctuation, is expected to serve as a key …

Effect of nonlinear magnon interactions on stochastic magnetization switching

M Elyasi, S Kanai, H Ohno, S Fukami, GEW Bauer - Physical Review B, 2024 - APS
Telegraph noise caused by frequent switching of the magnetization in small magnetic
devices has become a useful resource for probabilistic computing. Conventional theories …

Measurement-driven Langevin modeling of superparamagnetic tunnel junctions

LA Pocher, TN Adeyeye, S Gibeault, P Talatchian… - Physical Review …, 2024 - APS
Superparamagnetic tunnel junctions are important devices for a range of emerging
technologies, but most existing compact models capture only their mean switching rates …