A5101967152- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Electronic and Structural Properties of Oxides
- Ferroelectric and Piezoelectric Materials
- Thermal properties of materials
- Glycosylation and Glycoproteins Research
- Monoclonal and Polyclonal Antibodies Research
- 2D Materials and Applications
- Multiferroics and related materials
- Advanced Photocatalysis Techniques
- Quantum and electron transport phenomena
- Advancements in Semiconductor Devices and Circuit Design
- Advanced Fiber Laser Technologies
- Supercapacitor Materials and Fabrication
- Force Microscopy Techniques and Applications
- Conducting polymers and applications
- Graphene research and applications
- Semiconductor materials and devices
- Advanced Condensed Matter Physics
- Advanced Electron Microscopy Techniques and Applications
- Cancer Research and Treatments
- Cell death mechanisms and regulation
- Ammonia Synthesis and Nitrogen Reduction
- Machine Learning in Materials Science
- Virus-based gene therapy research
Dalian University
2018-2024
Dalian University of Technology
2018-2024
Peking University
2019-2024
Chinese Academy of Sciences
2023-2024
Hunan Academy of Traditional Chinese Medicine
2024
Nanjing Agricultural University
2024
Lanzhou Institute of Chemical Physics
2023-2024
Hunan University of Traditional Chinese Medicine
2021-2023
Xi'an Jiaotong University
2022
State Council of the People's Republic of China
2021
Nontrivial topological structures offer a rich playground in condensed matters and promise alternative device configurations for post-Moore electronics. While recently number of polar topologies have been discovered confined ferroelectric PbTiO
Co-catalysts decorations provide unique opportunity in promoting the photocatalytic water splitting performance of graphite carbon nitride (g-C3N4) system, while mechanistic understanding this complex catalytic network remains elusive. Here, taking single-atom-based photocatalysts (M1-g-C3N4) as an unprecedented simplified model we theoretically tracked kinetics for a comprehensive process and afforded descriptor αS1-T1/αT1-S0 (ratio extent S1-T1 T1-S0 state mixing) ΔGH∗ (hydrogen adsorpti...
Toll-like receptor 3 (TLR3), a member of the pathogen recognition receptors, is widely expressed in various cells and has been shown to activate immune signaling pathways by recognizing viral double-stranded RNA. Recently, it was reported that activation TLR3 induced apoptosis some cells, but detailed molecular mechanism not fully understood. In this study, we found endothelial polyinosinic-polycytidylic acid (poly(I-C)) dose- time-dependent cell apoptosis, which elicited activation, as...
Recently, several captivating topological structures of electric dipole moments (e.g., vortex, flux closure) have been reported in ferroelectrics with reduced size/dimensions. However, accurate polarization distribution these ferroelectric has never experimentally obtained. We precisely measure the an individual vortex PbTiO3/SrTiO3 superlattices at subunit cell level by using atomically resolved integrated differential phase contrast imaging aberration-corrected scanning transmission...
For atomically thin two-dimensional materials, interfacial effects may dominate the entire response of devices, because most atoms are in interface/surface. Graphene/sapphire has great application electronic devices and semiconductor thin-film growth, but nature this interface is largely unknown. Here we find that sapphire surface a strong interaction with some carbon graphene to form C-O-Al configuration, indicating no longer simple van der Waals interaction. In addition, structural...
Unconventional quasiparticle excitations in condensed matter systems have become one of the most important research frontiers. Beyond two- and fourfold degenerate Weyl Dirac fermions, three-, six- eightfold symmetry protected degeneracies been predicted however remain challenging to realize solid state materials. Here, charge density wave compound TaTe4 is proposed hold fermionic excitation point energy bands. High quality single crystals are prepared, where revealed by directly imaging...
Nanoscale defects like grain boundaries (GBs) would introduce local phonon modes and affect the bulk materials' thermal, electrical, optical, mechanical properties. It is highly desirable to correlate atomic arrangements for individual precisely understand structure–property relation. Here we investigated localized of Al2O3 GBs by combination vibrational electron energy loss spectroscopy (EELS) in scanning transmission microscope density functional perturbation theory (DFPT). The differences...
Natural materials usually consist of isotopic mixtures, for which different ratios can lead to distinct material properties such as thermal conductivity and nucleation process. However, the knowledge interface remains largely unexplored mainly due challenges in identification property measurement at an atomic scale. Here, by using monochromated electron energy-loss spectroscopy a scanning transmission microscope, we reveal momentum-transfer-dependent lattice vibration behavior artificial...
Transition metal dichalcogenides, featuring layered structures, have aroused enormous interest as a platform for novel physical phenomena and wide range of potential applications. Among them, special has been placed upon WTe2 MoTe2, which exhibit non-trivial topology both in single layer bulk well pressure induced or enhanced superconductivity. We study another distorted 1T material NbTe2 through systematic electrical transport measurements. Intrinsic superconductivity with onset transition...
Phonons are the primary heat carriers in non-metallic solids. In compositionally heterogeneous materials, thermal properties believed to be mainly governed by disrupted phonon transport due mass disorder and strain fluctuations, while effects of compositional fluctuation induced local states usually ignored. Here, scanning transmission electron microscopy energy loss spectroscopy sophisticated calculations, we identify vibrational ingredient-dependent interface modes Al x Ga 1 – N quantify...
Interfaces determine spin transfer efficiency of magnetic heterostructures. Here, the authors study pumping at YIG/Pt interface, together with an atomic-scale investigation interfacial states. This work singles out structural, chemical, and states interface clearly reveals their different roles in pumping, especially critical role moments on mixing conductance providing a guide to optimize future spintronics devices.
Abstract The d -band-filling of transition metals in complex oxides plays an essential role determining their structural, electronic and magnetic properties. Traditionally, at the oxide heterointerface, band-filling control has been achieved via electrostatic modification structure field-effect transistors or electron transfer, which is limited to quasi-two-dimension interface. Here we report a three-dimensional (3D) by changing local lattice coordination designed heterostructure. At LaCoO 3...
Abstract Ferroelectric vortices formed through complex lattice–charge interactions have great potential in applications for future nanoelectronics such as memories. For practical applications, it is crucial to manipulate these topological states under external stimuli. Here, we apply mechanical loads locally the a PbTiO 3 /SrTiO superlattice via atomically resolved in-situ scanning transmission electron microscopy. The undergo transition -domain with in-plane polarization compressive stress...