A5101824403- Magnetic properties of thin films
- Perovskite Materials and Applications
- GaN-based semiconductor devices and materials
- Enhanced Oil Recovery Techniques
- Metal and Thin Film Mechanics
- Luminescence Properties of Advanced Materials
- Ga2O3 and related materials
- Topological Materials and Phenomena
- Advanced Condensed Matter Physics
- Physics of Superconductivity and Magnetism
- Reservoir Engineering and Simulation Methods
- Multiferroics and related materials
- Fiber-reinforced polymer composites
- Inorganic Chemistry and Materials
- Advanced Frequency and Time Standards
- Radiation Detection and Scintillator Technologies
- Gyrotron and Vacuum Electronics Research
- Railway Engineering and Dynamics
- Water-Energy-Food Nexus Studies
- 2D Materials and Applications
- Metallic Glasses and Amorphous Alloys
- Characterization and Applications of Magnetic Nanoparticles
- Magneto-Optical Properties and Applications
- Hydrocarbon exploration and reservoir analysis
- Structural Analysis and Optimization
Fudan University
2022-2025
Science and Technology on Surface Physics and Chemistry Laboratory
2025
State Key Laboratory of Surface Physics
2022-2024
Nanjing University of Science and Technology
2023-2024
State Key Laboratory on Integrated Optoelectronics
2003-2024
Jilin University
2024
Zhejiang University
2024
Tsinghua University
2002-2021
Key Laboratory of Nuclear Radiation and Nuclear Energy Technology
2021
China University of Petroleum, Beijing
2020
Abstract Graphene oxide (GO) membranes with unique nanolayer structure have demonstrated excellent separation capability based on their size‐selective effect, but there are few reports achieving ion–ion separation, because it is difficult to inhibit the swelling effect of GO nano sheets as well precisely control interlayer spacing d a specific value between sizes different metal ions. Here, selective uranium from acidic radioactive waste containing multication achieved through precise...
Metal halide nanocrystals (NCs) with high photoluminescence quantum yield (PLQY) are desirable for lighting, display, and X-ray detection. Herein, the novel lanthanide-based NCs committed to designing optimizing optical scintillating properties, so as unravel PL origin, exciton dynamics, optoelectronic applications. Sb-doped zero-dimensional (0D) Cs
Abstract The demand for larger and lighter mechanisms next-generation space missions necessitates using deployable structures. High-strain fiber polymer composites show considerable promise such applications due to their exceptional strength-to-weight ratio, manufacturing versatility, packaging efficiency, capacity self-deployment stored strain energy. However, a significant challenge in composite structures arises from the unavoidable extended stowage periods before they are deployed into...
Inorganic halide double perovskite (DP) nanocrystals (NCs) have attracted great attention because of their nontoxicity, mild reaction conditions, good stability, and excellent optical optoelectronic properties. Herein, we prepare the inorganic terbium DP Cs2BTbCl6 (B = Na or Ag) NCs with bright green photoluminescence (PL) emission. The Na–Tb-based exhibit better PL properties compared Ag–Tb-based NCs, which is due to Cs2NaTbCl6 having a more localized charge carrier distribution on...
Lanthanide Halide Nanocrystals Novel luminescent 0D lanthanide halide nanocrystals with bright narrow-band green emission are reported by Peigeng Han, Kun Zhao, Ruifeng Lu, and co-workers in article number 2302140. The introduction of an ns2-cation dopant not only optimizes the crystallinity, but also greatly boosts photoluminescence efficiency up to 48.1%. Furthermore, Cs3TbCl6:2.5%Sb proved serve as a promising nanoscintillator, which has versatile application prospects for lighting X-ray imaging.
Utilizing the phenomenological theory based on crystal symmetry operation, we have established complete angular dependencies of galvanomagnetic effects, encompassing both anisotropic magnetoresistance (AMR) and planar Hall effect (PHE), for ferromagnetic films with C4v symmetry. These were experimentally confirmed via comprehensive mapping AMR PHE in single-crystal Fe(001) at room temperature. We demonstrated that intrinsic magnetization-induced effects are independent field strength by...
Permalloy (Py) films are commonly regarded as soft magnetic materials, wherein the magnetization aligns within film plane. Our studies reveal presence of perpendicular anisotropy in Py thin deposited on collinear antiferromagnetic RuO2(101) surface. By employing both magneto-optical Kerr effect and anomalous Hall effect, we identified interfacial origin observed anisotropy, quantifying it with an energy approximately 0.77 erg/cm2. Current-induced switching Py/RuO2(101) has been achieved...
Antiferromagnets are considered to be a promising host material for the next generation of magnetic storage due their high stability and stray-field-free property. However, absence net magnetization in antiferromagnets renders conventional magnetometry ineffective, posing great challenge investigating microscopic antiferromagnetic (AFM) properties under or electric fields. In this Perspective, we provide an overview various AFM domain imaging techniques discuss most optical method based on...
The antiferromagnet is considered to be a promising hosting material for the next generation of magnetic storage due its high stability and stray-field-free property. Understanding switching properties antiferromagnetic (AFM) domain state critical developing AFM spintronics. By utilizing magneto-optical birefringence effect, we experimentally demonstrate rate can enhanced by more than 2 orders magnitude through applying an alternating square-wave field on single crystalline Fe/CoO bilayer....
Titanium dioxide (TiO2) materials have been widely used in biomedical applications of bone tissue engineering. However, the mechanism underlying induced biomineralization onto TiO2 surface still remains elusive. In this study, we demonstrated that oxygen vacancy defects rutile nanorods could be gradually eliminated by regularly annealing treatment, which restrained heterogeneous nucleation hydroxyapatite (HA) simulated body fluids (SBFs). Moreover, also observed vacancies upregulated...
In this paper, the etching properties of AlGaN/GaN heterostructures were studied by using inductively coupled H2/Cl2, Ar/Cl2 and BCl3/Cl2 plasmas. Atomic force microscope (AFM) measurement showed that distinct surface morphology obtained different gas chemistries. Ultra-smooth etched with root-mean-square roughness 0.851 nm has been achieved chemistry, which is best result for heterostructure plasma (ICP) to our knowledge. Surface analysis was then performed understand characteristics Auger...
A systematic study of the nonselective and smooth etching GaN/AlGaN heterostructures was performed using Cl2/Ar/BCl3 inductively coupled plasmas (ICPs). Nonselective can be realized by adjusting BCl3 ratio in mixture (20%–60%), increasing ICP power, decreasing chamber pressure. Surface morphology etched strongly depends on gas chemistry pressure, whereas selectivity surface show a slight dependence dc bias total flow rate. Specifically, with addition 20% to Cl2/Ar (4:1) mixture,...
Abstract The conventional Hall effect is linearly proportional to the field component or magnetization perpendicular a film 1 . Despite increasing theoretical proposals on in-plane in various special systems induced by Berry curvature 2-8 , such an unconventional has only been experimentally reported Weyl semimetals and heterodimensional superlattice 9-12 Here, we report unambiguous experimental observation of (IPHE) centrosymmetric rutile RuO 2 IrO single-crystal films under magnetic field....
Heavy oil reservoirs with edge-bottom water represent a huge portion of the world’s reserves, and effective development such cyclic steam stimulation (CSS) is significant for petroleum supply. However, cut some CSS wells increases, production decreases, increase circulation turns. Discerning source produced basis targeted treatment measures. In this paper, new model established discriminating from in reservoirs. The combines traditional hydrochemical characteristics analysis factor analysis,...
Abstract The heterogeneity of reservoirs in offshore oilfields, which causes low utilization low-permeability and poor exploitation crude oil, is usually serious. Till date, fuzzy-ball fluids have been used to improve oil recovery terrestrial heterogeneous reservoirs, but it still uncertain whether could enhance the because high cost special operating environment oilfields. To this end, laboratory core flooding experiments field tests were conducted. results feasibility analysis show that:...
(A1)GaN semiconductors have many important applications in high temperature, power and frequency electronic devices such as HEMT HBT, well blue laser diodes, UV LEDs detectors. In this work, AIGaN/GaN superlattices been grown by low-pressure metal-organic vapor phase epitaxy (LP-MOVPE) characterized high-resolution X-ray diffraction (HRXRD), atomic force microscopy (AFM), photoluminescence (PL). The HRXRD measurements show that the crack-free epi-layer at optimized condition has very flat...
In this paper, the growth and device fabrication of AIGaN/GaN HEMTs are investigated by using Metal-Organic Vapor Phase Epi taxy (MOVPE) system. The grown wafer consists a 3-μm-thick unintentionally doped GaN buffer layer, an undoped AIGaN spacer n-doped Al<sub>0.28</sub>Ga<sub>0.72</sub>N cap layer. condition structure optimized for high performance devices. devices exhibit maximum saturation current density 1000 mA/mm, good pinch off at -5V gate bias peak extrinsic transconductance...