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arXiv · 2210.01150

Probing domain wall dynamics in magnetic Weyl semimetals via the non-linear anomalous Hall effect

Shiva Heidari·Reza Asgari·Dimitrie Culcer
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Abstract

The magnetic textures of Weyl semimetals are embedded into their topological structure and interact dynamically with it. Here, we examine electric field-induced structural phase transitions in domain walls mediated by the spin transfer torque, and their footprint in charge transport. Remarkably, domain wall dynamics lead to a transient, local, non-linear anomalous Hall effect and non-linear anomalous drift current, which serve as direct probes of the magnetization dynamics and of the domain wall location. We discuss experimental observation in state-of-the-art samples.

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Shiva Heidari, Reza Asgari, Dimitrie Culcer. 2022-10-03. Probing domain wall dynamics in magnetic Weyl semimetals via the non-linear anomalous Hall effect. https://doi.org/10.1103/physrevb.107.214450

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