Curvature-Controlled Polarization in Adaptive Ferroelectric Membranes.

ABSTRACT: This study explores the ferroelectric domain structure and mechanical properties of PbTiO₃-based membranes, which develop a well-ordered and crystallographic-oriented ripple pattern upon release from their growth substrate. The ferrolectric domain structure of the PbTiO₃ layer is examined at various length scales using optical second harmonic generation, piezoresponse force microscopy, and scanning transmission electron microscopy. These methods reveal the presence of purely in-plane domains organized into superdomains at the crest of the ripples, while an in-plane/out-of-plane domain structure is observed in the flat regions separating the ripples, in agreement with phase-field simulations. The mechanical properties of the membranes are assessed using contact resonan

SUBMITTER: Segantini G 

PROVIDER: S-EPMC12530018 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature