We have proposed a method to synchronize multiple spin-transfer torque oscillators based on spin pumping, inverse spin Hall, and spin Hall effects. The proposed oscillator system consists of a series of nano-magnets in junction with a normal metal with high spin-orbit coupling, and an accumulative feedback loop. We conduct simulations to demonstrate the effect of modulated charge currents in the normal metal due to spin pumping from each nano-magnet. We show that the interplay between the spin Hall effect and inverse spin Hall effect results in synchronization of the nano-magnets.
@article{arxiv.1506.01357,
title = {Synchronization of spin-transfer torque oscillators by spin pumping, inverse spin Hall, and spin Hall effects},
author = {Mehrdad Elyasi and Charanjit S. Bhatia and Hyunsoo Yang},
journal= {arXiv preprint arXiv:1506.01357},
year = {2015}
}