Surface weak ferromagnetism

Vladimir A. Zyuzin

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arXiv · 2608.16808

Surface weak ferromagnetism

Vladimir A. Zyuzin

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Abstract

This paper proposes a model of a N\'{e}el-ordered antiferromagnet exhibiting a weak ferromagnetic moment restricted to the crystal surface, generated by spin-orbit coupling induced by broken surface symmetries. Depending on crystal termination, the surface magnetic moment can align with identical or opposing signs on the top and bottom surfaces, resulting in a zero Faraday effect paired with a finite Kerr effect upon reflection for the latter configuration.

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Vladimir A. Zyuzin. 2026-08-17. Surface weak ferromagnetism. https://arxiv.org/abs/2608.16808

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