Figure 1
From: Overcoming thermal noise in non-volatile spin wave logic
Basic building blocks for a spin wave logic device - (a) PMA [Co(0.4)/Ni(0.8)]10 multilayer spin wave bus and (b) ME cell comprising of a magnetostrictive Co60Fe40 layer grown on (001)PMN-PT ferroelectric layer. (c) Working principle of the spin wave device, based on voltage-controlled strain-mediated magnetization switching, (d,e) Gaussian distribution of the amplitude (θ = cos−1 mz) and phase (ϕ = tan−1 (my/mx)) of the arriving spin wave, detected at the falling edge of the clock, (f) energy landscape and magnetization relaxation trajectory from out-of-plane to in-plane energy minima for the case of (i) a nanomagnet with in-plane stable magnetization states, and (ii) lowered out-of-plane energy barrier resulting in the interchange of the position of the saddle point and the energy maxima.
