# Magnetic structure of the MnGe helimagnet and representation analysis

## TL;DR

This paper investigates the magnetic structures of MnGe, confirming a canonical helimagnetic structure through muon spin rotation data, and highlights differences from MnSi to motivate further theoretical research on chiral magnets.

## Contribution

It provides a detailed symmetry-based analysis of MnGe's magnetic structure and compares it with MnSi, revealing fundamental differences in their magnetic behavior.

## Key findings

- Muon spin rotation data supports canonical helimagnetic structure in MnGe
- MnGe shows no deviation from expected magnetic symmetry
- Differences between MnGe and MnSi suggest new theoretical challenges

## Abstract

In the light of recent results obtained for the prototype helimagnet MnSi we examine the possible magnetic structures of compounds of the same family, consistent with the crystal symmetries when the magnetic propagation vector is parallel to the [001] axis. The analysis of a published muon spin rotation spectrum recorded in MnGe [Phys. Rev. B 93, 174405 (2016)] shows no deviation from the canonical helimagnetic structure, unlike in MnSi. This qualitative difference calls for further theoretical works on chiral magnets.