Chasing topological texture in polar oxides

Session Information

Location: amf. P7 | "Gheorghe Asachi" Technical University of Iași (TUIAȘI)
Day: 2. Tuesday 16
Time: 17:00-18:00
Chairperson: Dennis Meier

Presentation Details

Presentation Type: Oral presentation
Title: Chasing topological texture in polar oxides
Abstract: Topological polarization textures in polar oxides are attracting increasing attention as potential building blocks for next-generation nanoelectronics devices. This contribution presents an overview of recent progress in the modeling and understanding of skyrmionic defects in ferroelectric materials.
We discuss computational approaches for stabilizing, identifying, and characterizing these topological structures, using atomistic simulations based on potentials fitted from first-principles calculations.
These methods have enabled the prediction of polar skyrmions and antiskyrmions and reveal that their stabilization can be achieved through suitable nanodomain configurations, such as columnar domains with polarization opposite to the surrounding matrix. The interaction of topological polarization textures with external electric fields is also addressed, as a route to create and move such textures.
Finally, emerging perspectives for the design and control of ferroelectric skyrmions are discussed, including opportunities offered by strain engineering and chemical doping strategies.

Presenter

Dr Mauro António Pereira Gonçalves
Institute of Physics of the Czech Academy of Sciences | Czech Republic

Authors

1. Pereira Gonçalves, Mauro António | Institute of Physics of the Czech Academy of Sciences Na Slovance 1999/2, 182 00 Prague 8, Czechia