A5027809796- Semiconductor materials and devices
- Physics of Superconductivity and Magnetism
- Metallic Glasses and Amorphous Alloys
- Semiconductor Quantum Structures and Devices
- Material Dynamics and Properties
- Superconducting Materials and Applications
- Theoretical and Computational Physics
- Semiconductor materials and interfaces
- Magnetic properties of thin films
- Glass properties and applications
- GaN-based semiconductor devices and materials
- Magnetic and transport properties of perovskites and related materials
- Infrastructure Maintenance and Monitoring
- HVDC Systems and Fault Protection
- Graphene research and applications
- Muon and positron interactions and applications
- Superconductivity in MgB2 and Alloys
- Text and Document Classification Technologies
- BIM and Construction Integration
- Building materials and conservation
- nanoparticles nucleation surface interactions
- Electrodeposition and Electroless Coatings
- Anomaly Detection Techniques and Applications
- Surface and Thin Film Phenomena
- Electron and X-Ray Spectroscopy Techniques
Sinopec (China)
2025
Sinopec Research Institute of Petroleum Processing
2025
Institute of Physics
2020-2024
Fujian Electric Power Survey & Design Institute
2024
West China Hospital of Sichuan University
2024
Qingdao University
2024
Xi'an Jiaotong University
2024
Peking University
2024
Sichuan University
2024
Southwest Jiaotong University
2023-2024
How glasses relax at room temperature is still a great challenge for both experimental and simulation studies due to the extremely long relaxation time-scale. Here, by employing modified molecular dynamics technique, we extend quantitative measurement of process metallic temperature. Both energy dynamics, low temperatures, follow stretched exponential decay with characteristic stretching exponent β = 3/7, which distinct from that supercooled liquid. Such aging originates release energy, an...
Abstract The meso‐structure of pervious concrete significantly influences its overall performance. Accurately identifying the is imperative for optimizing design concrete, considering mechanical properties and functionality. Therefore, to address difficulty recognizing meso‐structures a method utilizing deep learning image semantic segmentation techniques proposed in this study. First, based on classical model, three models, namely, Res‐UNet, ED‐SegNet, G‐ENet, are using techniques. These...
Lunar glasses with different origins act as snapshots of their formation processes, providing a rich archive the Moon's and evolution. Here, we reveal diverse from Chang'E-5 (CE-5) lunar regolith, clarify physical liquid quenching, vapor deposition irradiation damage respectively. The series quenched glasses, including rotation-featured particles, vesicular agglutinates adhered melts, record multiple-scale impact events. Abundant micro-impact products, like micron- to nano-scale glass...
In this paper, the author seeks to understand how image sensors are utilized in an ADS. Particularly, it focuses on manner which acquire environmental information necessary for safe and efficient vehicular operation. The work contrasts two prominent sensors: CCD CMOS detectors, focusing shift from CCDs ADSs since latter is less power hungry, works at a faster rate, easier implement. paper then goes further compares new sensor technologies such as High Dynamic Range (HDR), Noise reduction...
The localized \ensuremath{\beta}-relaxation process is critical for understanding the complex dynamics and controlling properties of glasses. However, in most metallic glasses only appears a form excess wing or shoulder dynamic mechanical spectra while underlying mechanism remains elusive. In present work, systematically studied by calorimetry where glass-transition temperature (${T}_{\mathrm{g}}$) resolved. key finding that long-time sub-${T}_{\mathrm{g}}$ annealing induces an endothermic...
We have grown N-rich, dilute Sb GaN1−xSbx alloys by low temperature molecular beam epitaxy. At growth of <100 °C the material loses crystallinity and becomes primarily amorphous with small crystallites 2–5 nm at a composition >4 at. %. Despite different microstructures found for composition, absorption edge shifts continuously from 3.4 eV (GaN) to close 1 samples content >30 less than 5 % show sufficient bandgap reduction (∼2 eV), making them suitable...
By decreasing the rate of physical vapor deposition, ZrCuAl metallic glasses with improved stability and mechanical performances can be formed, while microscopic structural mechanisms remain unclear. Here, scanning transmission electron microscopy high-energy synchrotron X-ray diffraction, we found that glass deposited at a higher exhibits heterogeneous structure compositional fluctuations distance few nanometers, which gradually disappear on deposition rate; eventually, homogeneous is...
Nonstoichiometric GaAs thin layers can be produced in molecular beam epitaxy if they are grown at temperatures below 400 °C [low-temperature (LT)-GaAs]. Due to the incorporation of excess As form native point defects, namely antisite defects (AsGa), these exhibit ultrashort time response and, after annealing 600 °C, excellent semi-insulating behavior. The response, however, is governed by concentration ionized antisites ([AsGa+]), which just a few percent total ([AsGa]). Additionally,...
Peculiar temporal intermittent microscopic dynamics has been recently reported during structural relaxation in metallic glasses, though its origin is poorly understood. By using x-ray photon correlation spectroscopy, we have investigated the atomic motions a model system of glass with distinct stability and situ stress states. We find that can be tuned from dramatically nonmonotonous to monotonous. The always accompanied by activation secondary process, as indicated drop initial nonergodic...
Periodic surface structures at the nanometer or micrometer scale have been achieved by various methods, while atomic-scale over large areas are unavailable. Herein, we report formation of highly coherent ripple patterns on bulk metallic glass (MG) surfaces low-energy ion irradiation. The pattern arises through three consecutive stages: emergence initial random dots, subsequent transition to ripples, and ordering annihilation reactions mobile defects, wavelength amplitude remain invariant...
While there has been significant pursuits and interest in single element metallic glass (MG), it extremely difficult to obtain. Despite the recent advances preparing MGs, massive production of stable monatomic MGs is great challenge. Here, we show that Ta MG, presenting identical structural characteristics those from liquid quenching, can be produced using conventional ion beam deposition on a room temperature substrate. The amorphous structure retained even after being annealed at 573 K for...