Acousto-magnonic Hall effect in honeycomb antiferromagnets

Kavli Affiliate: Mamoru Matsuo

| First 5 Authors: Ryotaro Sano, Yuya Ominato, Mamoru Matsuo, ,

| Summary:

The recently discovered van der Waals antiferromagnets have suffered from the
lack of a comprehensive method to study their magnetic properties. Here, we
propose a dissipationless magnon spin Hall current driven by surface acoustic
waves as a novel probe for such antiferromagnets. Our results pave the way
towards mechanical detection and manipulation of the magnetic order in
two-dimensional antiferromagnets. Furthermore, they will overcome the
difficulties with weak magnetic responses inherent in the use of
antiferromagnets and hence provide a building block for future
antiferromagnetic spintronics.

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