A comprehensive simulation package for analysis of multilayer spintronic devices

TL;DR

This paper introduces cmtj, a versatile simulation package for large-scale macrospin modeling of multilayer spintronic devices, including static and dynamic experimental techniques, validated by experimental comparisons.

Contribution

The paper presents a comprehensive simulation tool that integrates static and dynamic spintronics measurement techniques, enhancing analysis capabilities for multilayer devices.

Findings

Accurately simulates magnetoresistance and hysteresis loops.

Models dynamic techniques like ferromagnetic resonance and Hall measurements.

Validated with experimental results across various examples.

Abstract

We present cmtj - a comprehensive simulation package that allows large-scale macrospin simulations for a variety of multilayer spintronics devices. Apart from conventional static simulations, such as magnetoresistance and magnetisation hysteresis loops, cmtj implements a mathematical model of dynamic experimental techniques commonly used for spintronics devices characterisation, for instance: spin diode ferromagnetic resonance, pulse-induced microwave magnetometry, or harmonic Hall voltage measurements. We demonstrate the accuracy of the macrospin simulations on a variety of examples, accompanied by some experimental results.