Magnetization Compensation Temperature and Frustration-Induced Topological Defects in Ferrimagnetic AntiperovskiteMn4N,Physical Review Letters

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Magnetization Compensation Temperature and Frustration-Induced Topological Defects in Ferrimagnetic AntiperovskiteMn4N
Physical Review Letters ( IF 8.1 ) Pub Date : 2021-11-18 , DOI: 10.1103/physrevlett.127.217204
Temuujin Bayaraa ₁ , Changsong Xu _{1,

2} , L Bellaiche _{1,

2}

Affiliation

First-principles-based simulations are conducted to investigate magnetic properties and topological spin textures in the antiperovskite

{Mn}_{4} N

ferrimagnet. A magnetization compensation temperature, resulting from a competition between different Mn sublattices, is found in this system, when under thermal equilibrium. Striking metastable topological states are also discovered, including nanometric hedgehog-antihedgehog pairs that originate from frustrated exchange interactions rather than the usual Dzyaloshinskii-Moriya interaction.

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