4 papers
Atomic-Scale Roughness of Freestanding Oxide Membranes Revealed by Electron Ptychography
Huaicheng Yuan, Yu-Chen Liu, Li-Shu Wang +3
Freestanding oxide films offer significant potential for integrating exotic quantum functionalities with semiconductor technologies. However, their performance is critically limite…
Atomistic Structure of Transient Switching States in Ferroelectric AlScN
Jiawei Huang, Jinyang Li, Xinyue Guo +5
We resolve the microscopic mechanism of polarization switching in wurtzite ferroelectric AlScN by integrating advanced thin-film fabrication, ferroelectric switching dynamics chara…
Interstitial oxygen order and its competition with superconductivity in LaPrNiO
Zehao Dong, Gang Wang, Ningning Wang +6
High-temperature superconductivity in bilayer nickelate LaNiO under pressure has attracted significant interest in condensed matter physics. While early samples exhibit…
Atomic-Scale Heterogeneity of Hydrogen in Metal Hydrides Revealed by Electron Ptychography
Pengcheng Li, Chenglin Pua, Zehao Dong +6
Hydrogen plays critical roles in materials science, particularly for advancing technologies in hydrogen storage and phase manipulation, while also posing challenges like hydrogen e…