5 papers
Thickness-dependent crack suppression and wrinkle formation in freestanding BaTiO3 membranes
Rajesh Mandal, Ajay Kumar, Nini Pryds
Freestanding ferroelectric oxide membranes offer a promising route toward silicon-integrated low-power electronic and memory devices, but reproducible membrane quality remains chal…
Designing dislocation-driven polar vortex networks in twisted perovskites
William Sandholt, Nicolas Gauquelin, John Mangeri +21
Twisting two atomic layers produces a geometric moire pattern, but bonding-induced interfacial reconstruction fundamentally transforms this into an ordered dislocation network - a…
Instability-driven mechanically locked states in functional oxide membranes
Varun Harbola, Thomas Emil le Cozannet, Denis Alikin +10
Mechanical instabilities in thin solids offer a powerful route to engineer nonlinear responses, yet their controlled use in functional crystalline oxides has remained largely unexp…
Tunable and Persistent Macroscopic Polarization in Nominally Centrosymmetric Defective Oxides
D. -S. Park, N. Pryds, N. Gauquelin +8
Introducing symmetry breaking in materials enables the emergence of functionalities. This can be microscopically and macroscopically driven by applying external stimuli such as mec…
Ultrathin oxide freestanding membranes with large-scale continuity and structural perfection
Yuhao Hong, Yang Hu, Jianyao Zheng +14
Freestanding oxide membranes offer integration with advanced semiconductor platforms, unlocking opportunities for flexible electronics, silicon-based spintronics, neuromorphic comp…