Theory of the interfacial Dzyaloshinskii-Moriya interaction in Rashba antiferromagnets

Alireza Qaiumzadeh, Ivan A. Ado, Rembert A. Duine, Mikhail Titov, Arne Brataas

Research output: Contribution to journalArticleAcademicpeer-review

17 Citations (Scopus)
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In antiferromagnetic (AFM) thin films, broken inversion symmetry or coupling to adjacent heavy metals can induce Dzyaloshinskii-Moriya (DM) interactions. Knowledge of the DM parameters is essential for understanding and designing exotic spin structures, such as hedgehog Skyrmions and chiral Néel walls, which are attractive for use in novel information storage technologies. We introduce a framework for computing the DM interaction in two-dimensional Rashba antiferromagnets. Unlike in Rashba ferromagnets, the DM interaction is not suppressed even at low temperatures. The material parameters control both the strength and the sign of the interfacial DM interaction. Our results suggest a route toward controlling the DM interaction in AFM materials by means of doping and electric fields.

Original languageEnglish
Article number197202
Number of pages6
JournalPhysical Review Letters
Issue number19
Publication statusPublished - 10 May 2018


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