Publications by authors named "Ziming Shao"
Controlling the Mott transition through strain engineering is crucial for advancing the development of memristive and neuromorphic computing devices. Yet, Mott insulators are heterogeneous due to intrinsic phase boundaries and extrinsic defects, posing significant challenges to fully understanding the impact of microscopic distortions on the local Mott transition. Here, using a synchrotron-based scanning X-ray nanoprobe, we studied the real-space structural heterogeneity during the structural phase transition in a VO thin film.
View Article and Find Full Text PDFMott metal-insulator transitions possess electronic, magnetic, and structural degrees of freedom promising next-generation energy-efficient electronics. A previously unknown, hierarchically ordered, and anisotropic supercrystal state is reported and its intrinsic formation characterized in-situ during a Mott transition in a CaRuO thin film. Machine learning-assisted X-ray nanodiffraction together with cryogenic electron microscopy reveal multi-scale periodic domain formation at and below the film transition temperature (T ≈ 200-250 K) and a separate anisotropic spatial structure at and above T.
View Article and Find Full Text PDFBackground: Bipolar disorder is identified as a cause of severe damage to the physical, psychological and social functioning of adolescents and young adults.
Aims: The aim of this study is to ascertain the trends in the burden of bipolar disorder among individuals aged 10-24 years at global, regional and national levels from 1990 to 2019.
Methods: The data analysed in this study were from the Global Burden of Diseases 2019.
Real-space imaging of periodic nanotextures in thin films via phasing of diffraction data.
Proc Natl Acad Sci U S A
July 2023
Article Synopsis
- New periodic nanotextures can arise in materials due to nanoscale features, leading to interesting quantum phenomena like Moire patterns and topologically protected states.
- The study develops a new, nondestructive imaging technique that uses advanced methods to convert diffuse X-ray scattering data into clear images of structural changes in thin films, specifically in a Mott insulator.
- Results show that one material, CaRuO, exhibits a novel strain-induced nanotexture that has not been seen in bulk crystals, suggesting exciting new possibilities for exploring quantum materials.