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Journal Articles Advanced Electronic Materials Year : 2022

Ultrafast Activation and Tuning of Topological Textures in Ferroelectric Nanostructures

Abstract

Polar topological textures are recently discovered in ultra-thin ferroelectrics, including stripe, labyrinth, or bubble states. Enabling to shape on-demand, these topologies can provide an original platform for potential applications. Here, using first-principle-based calculations, it is shown that THz electric field pulses are an efficient means for generating a plethora of topological states in ultrathin films made by a prototypical ferroelectric system, depending on the characteristics of these pulses and films. Consequently, these ultrafast electrical pulses in ultra-thin ferroelectrics offer key ingredients for mimicking neuronal and synaptic behaviors, including all-optical devices, and open a new avenue for topological objects to neuromorphic systems.
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hal-03975126 , version 1 (06-02-2023)

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Sergey Prosandeev, Sergei Prokhorenko, Yousra Nahas, Julie Grollier, Diyar Talbayev, et al.. Ultrafast Activation and Tuning of Topological Textures in Ferroelectric Nanostructures. Advanced Electronic Materials, 2022, 8 (12), pp.2200808. ⟨10.1002/aelm.202200808⟩. ⟨hal-03975126⟩
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