Planar approximation for spin transfer systems with application to tilted polarizer devices

TL;DR

This paper derives an effective one-dimensional model for planar spin-transfer devices with easy-plane anisotropy, simplifying the analysis of magnetic dynamics and switching behavior in tilted polarizer systems.

Contribution

It provides a detailed derivation of the effective planar equation and applies it to analyze magnetic switching in tilted polarizer devices.

Findings

Effective one-dimensional equation accurately describes in-plane magnetic dynamics.

Simplifies understanding of magnetic switching in tilted polarizer devices.

Provides qualitative insights into device behavior with easy-plane anisotropy.

Abstract

Planar spin-transfer devices with dominating easy-plane anisotropy can be described by an effective one-dimensional equation for the in-plane angle. Such a description provides an intuitive qualitative understanding of the magnetic dynamics. We give a detailed derivation of the effective planar equation and use it to describe magnetic switching in devices with tilted polarizer.