Anomalous Hall effect in noncollinear antiferromagnetic Mn3NiN thin films

David Boldrin, Ilias Samathrakis, Jan Zemen, Andrei Mihai, Bin Zou, Freya Johnson, Bryan D. Esser, David W. McComb, Peter K. Petrov, Hongbin Zhang, Lesley F. Cohen

Research output: Contribution to journalArticleResearchpeer-review

8 Citations (Scopus)

Abstract

We have studied the anomalous Hall effect (AHE) in strained thin films of the frustrated antiferromagnet Mn3NiN. The AHE does not follow the conventional relationships with magnetization or longitudinal conductivity and is enhanced relative to that expected from the magnetization in the antiferromagnetic state below TN=260K. This enhancement is consistent with origins from the noncollinear antiferromagnetic structure, as the latter is closely related to that found in Mn3Ir and Mn3Pt where a large AHE is induced by the Berry curvature. As the Berry-phase-induced AHE should scale with spin-orbit coupling, yet larger AHE may be found in other members of the chemically flexible Mn3AN structure.

Original languageEnglish
Article number094409
Number of pages6
JournalPhysical Review Materials
Volume3
Issue number9
DOIs
Publication statusPublished - 23 Sep 2019
Externally publishedYes

Cite this