# Anomalous Hall effect in antiferromagnetic/non-magnetic interfaces

## TL;DR

This study combines theory and experiments to explore the anomalous Hall effect at Pt/Cr interfaces, revealing that proximity-induced magnetization and band topology contribute to the observed phenomena.

## Contribution

It provides new insights into the origin of the anomalous Hall effect in antiferromagnetic/non-magnetic interfaces through combined theoretical and experimental analysis.

## Key findings

- Interfacial magnetization can be induced in Pt layers.
- Anomalous Hall signals are detected at Pt/Cr interfaces.
- The effect arises from proximity magnetization and band topology.

## Abstract

We report a combined theoretical and experimental investigation of magnetic proximity and Hall transport in Pt/Cr bilayers. Density functional theory indicates that an interfacial magnetization can be induced in the Pt layer and a strong magnetocrystalline anisotropy with an easy axis out of plane arises in the antiferromagnet. A signal ascribed to the anomalous Hall effect is detected and associated to the interface between Pt and Cr layers. We show that this effect originates from the combination of proximity-induced magnetization and a nontrivial topology of the band structure at the interface.

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Source: https://tomesphere.com/paper/1904.03541