# Emergence of a Skyrmion Phase in a Frustrated Heisenberg Antiferromagnet   with Dzyaloshinskii-Moriya Interaction

**Authors:** M. Mohylna, M. \v{Z}ukovi\v{c}

arXiv: 1905.11501 · 2020-07-08

## TL;DR

This study demonstrates the emergence of a stable skyrmion phase in a frustrated triangular lattice antiferromagnet with Dzyaloshinskii-Moriya interaction, identifying the minimal DMI strength and magnetic field conditions for its existence.

## Contribution

It establishes the minimum DMI strength and magnetic field necessary for skyrmion phase formation in a frustrated antiferromagnetic system through Monte Carlo simulations.

## Key findings

- Skyrmion phase appears at DMI D > 0.2
- Stable within magnetic field 2 < h < 4.5
- Exists at very low temperatures near zero

## Abstract

We study formation of a periodical structure of quasiparticle-like magnetic configurations with non-trivial topological charge, known as a magnetic skyrmion phase, on a frustrated triangular lattice antiferromagnetic Heisenberg model with Dzyaloshinskii-Moriya interaction (DMI) by means of Monte Carlo simulations. The existence of such a phase, formed on the three interpenetrating sublattices, has been demonstrated for a sufficiently large strength of DMI. The goal of the present investigation is to establish the minimum values of both the DM interaction strength as well as the magnetic field intensity at which such a skyrmion phase can exist at very low temperatures (close to zero). We find that the skyrmion phase emerges above the DMI parameter value of $D = 0.2$ and persists within the field intensity $2 \lesssim h < 4.5$.

## Full text

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## Figures

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## References

13 references — full list in the complete paper: https://tomesphere.com/paper/1905.11501/full.md

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Source: https://tomesphere.com/paper/1905.11501