2025/09/08 by Léo Boron, Boron, Léo, Anaïs Sené +9
Engineering · Materials Science · #Acoustic Wave Resonator Technologies #FOS: Physical sciences #Material Properties and Applications #Materials Science (cond-mat.mtrl-sci) #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Ultrasonics and Acoustic Wave Propagation
paper · pdf · doi:10.48550/arxiv.2509.06508
openalex publication_date 2025/09/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Ferroelectric thin films under epitaxial strain exhibit a variety of vortex-like topological polarization textures. To analyze them, we build on the Ginzburg-Landau-Devonshire framework and extend the previously introduced soft-domain approach. This formulation provides a compact variational theoretical description of polarization morphologies in strained PbTiO3 films. It yields phase diagrams as a function of temperature, strain, and thickness, and clarifies the morphological structure of emergent topological states. The method is computationally efficient and offers practical guidance for experimental studies of ferroelectric nanostructures.