# Modelling compensated antiferromagnetic interfaces with MuMax3

## TL;DR

This paper presents methods to simulate compensated antiferromagnetic interfaces in MuMax3, enabling detailed modeling of spin interactions, coupling energies, and training effects in antiferromagnetic systems.

## Contribution

It introduces new implementations in MuMax3 for modeling compensated antiferromagnetic spins, including spin flop coupling and energy term calculations for strong coupling.

## Key findings

- Successfully modeled spin flop coupling as uniaxial anisotropy.
- Accurately accounted for energy terms in strong ferromagnet-antiferromagnet coupling.
- Reproduced the training effect in polycrystalline IrMn/CoFe bilayers.

## Abstract

We show how compensated antiferromagnetic spins can be implemented in the micromagnetic simulation program MuMax3. We demonstrate that we can model spin flop coupling as a uniaxial anisotropy for small canting angles and how we can take into account the exact energy terms for strong coupling between a ferromagnet and compensated antiferromagnet. We also investigate the training effect in biaxial antiferromagnets and reproduce the training effect in a polycrystalline IrMn/CoFe bilayer.