# Magnonic band structure in a Co/Pd stripe domain system investigated by Brillouin light scattering and micromagnetic simulations

## TL;DR

This study combines experimental Brillouin Light Scattering and micromagnetic simulations to analyze spin-wave dynamics in a Co/Pd multilayer with stripe domains, revealing magnonic crystal-like behavior and mode scattering effects.

## Contribution

It provides new insights into the magnonic band structure of stripe domain systems using combined experimental and simulation approaches.

## Key findings

- Stripe domains cause scattering of spin-wave modes.
- Dispersion relations depend on wave vector orientation.
- Mode profiles show magnonic crystal-like features.

## Abstract

By combining Brillouin Light Scattering and micromagnetic simulations we studied the spin-wave dynamics of a Co/Pd thin film multilayer, features a stripe domain structure at remanence. The periodic up and down domains are separated by cork-screw type domain walls. The existence of these domains causes a scattering of the otherwise bulk and surface spin-wave modes, which form mode families, similar to a one dimensional magnonic crystal. The dispersion relation and mode profiles of spin waves are measured for transferred wave vector parallel and perpendicular to the domain axis.

---
Source: https://tomesphere.com/paper/1901.05985