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Paper   IPM / Physic / 17124
School of Physics
  Title:   Probing domain wall dynamics in magnetic Weyl semimetals via the non-linear anomalous Hall effect
1.  Sh. Heidari
2.  R. Asgari
3.  D. Culcer
  Status:   Preprint
  Year:  2022
  Supported by:  IPM
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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