# Probing of the interfacial Heisenberg and Dzyaloshinskii--Moriya exchange interaction by magnon spectroscopy

## TL;DR

This review summarizes recent experimental methods for quantifying interfacial Heisenberg and Dzyaloshinskii--Moriya exchange interactions in ultrathin magnetic films using magnon spectroscopy.

## Contribution

It provides a comprehensive overview of experimental techniques to measure magnetic exchange parameters at interfaces, highlighting how magnon spectra reveal interaction strengths.

## Key findings

- Quantitative determination of exchange parameters in ultrathin films.
- Experimental approaches to probe symmetric and antisymmetric exchange interactions.
- Use of magnetic excitation spectra to quantify interaction strengths.

## Abstract

This Topical Review presents an overview of the recent experimental results on the quantitative determination of the magnetic exchange parameters in ultrathin magnetic films and multilayers, grown on different substrates. The experimental approaches to probe both the symmetric Heisenberg as well as the antisymmetric Dzyaloshinskii--Moriya exchange interaction in ultrathin magnetic films and at interfaces are discussed in detail. It is explained how the experimental spectrum of magnetic excitations can be used to quantify the strength of these interactions.