CE09 - Nanomatériaux et nanotechnologies pour les produits du futur

Tailoring topological states in multiferroics – TATOO

Submission summary

In the TATOO project, we will first initiate ferroelectric landscapes harbouring polarisation windings in nanostructured multiferroic BiFeO3 thin films. We will promote various polarisation configurations (centre domains or vortices), and observe the corresponding spin winding textures inherently induced by the magnetoelectric coupling, seeking for new ferroelectric and antiferromagnetic topological objects. We will integrate these objects in plane capacitors, allowing full electrical readout of ferroelectric chiral textures, demonstrate low-power switchability and off-power long time retention. Still resorting on magnetoelectric coupling, we will trigger the creation/annihilation of antiferromagnetic topological states in the very same devices. The overall objective is to create and manipulate topologically-protected nano-sized multiferroic states in functional devices.

Project coordinator

Monsieur Vincent GARCIA (Unité mixte de physique CNRS/Thalès)

The author of this summary is the project coordinator, who is responsible for the content of this summary. The ANR declines any responsibility as for its contents.


L2C Laboratoire Charles Coulomb
UMPhy Unité mixte de physique CNRS/Thalès
SPMS Structures, propriétés et modélisation des solides
SPEC Service de physique de l'état condensé

Help of the ANR 458,266 euros
Beginning and duration of the scientific project: November 2021 - 42 Months

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