Dynamical Regimes Induced by Spin Transfer in Magnetic Nanopillars

TL;DR

This paper experimentally demonstrates out-of-plane precession caused by spin transfer in magnetic nanopillars, highlighting the influence of magnetic excitations and field orientation on dynamical behaviors, supported by micromagnetic simulations.

Contribution

It reveals the conditions for out-of-plane precession in magnetic nanostructures and explores the effects of magnetic excitations and field orientation on stability.

Findings

Out-of-plane precession is induced by spin transfer.

Magnetic excitations affect precession stability.

Precession sensitivity depends on magnetic field orientation.

Abstract

We demonstrate the predicted out-of-plane precession induced by spin transfer in magnetic nanostructures with in-plane magnetic field. We show that other magnetic excitations have a significant effect on the stability of the out-of plane precession, making it extremely sensitive to the orientation of the applied magnetic field. The data are supported with micromagnetic simulations. Our results elucidate the relation between the excitation spectrum and the specific dynamical behaviors of nanoscale magnets.