Summary
International Symposium on Nonlinear Theory and Its Applications
2022
Session Number:A5L-D
Session:
Number:A5L-D-03
Stochasticity and Bifurcation in Spintronics Device for Probabilistic Computing
Shun Kanai , Takuya Funatsu , Jun'Ichi Ieda , Shunsuke Fukami , Hideo Ohno,
pp.176-177
Publication Date:12/12/2022
Online ISSN:2188-5079
Summary:
Physics of the stochastic behavior of spintronics devices for probabilistic computing is discussed. We experimentally access the potential landscape of nanoscale stochastic magnetic tunnel junctions (MTJs) perturbed under spin-transfer torque (STT) and magnetic field, and discuss the result based on the local bifurcation theory. In addition, we discuss a design guideline of the switching event time for the faster operation of the probabilistic computing and its relation to the fluctuation-dissipation theorem. Based on the guideline, we demonstrate the nanosecond relaxation time of the nanoscale stochastic MTJ device.