A5001534990- Magnetic properties of thin films
- Ferroelectric and Piezoelectric Materials
- Microwave Dielectric Ceramics Synthesis
- Magnetic Properties and Synthesis of Ferrites
- Magnetic Properties and Applications
- Electromagnetic wave absorption materials
- Multiferroics and related materials
- Advanced ceramic materials synthesis
- Magneto-Optical Properties and Applications
- Metallic Glasses and Amorphous Alloys
- Quantum and electron transport phenomena
- Advanced Memory and Neural Computing
- ZnO doping and properties
- High-pressure geophysics and materials
- Photonic Crystal and Fiber Optics
- Magnetic and transport properties of perovskites and related materials
- Metamaterials and Metasurfaces Applications
- Theoretical and Computational Physics
- Photonic and Optical Devices
- Acoustic Wave Resonator Technologies
- Advancements in Battery Materials
- Semiconductor materials and interfaces
- Terahertz technology and applications
- Thermal properties of materials
- Transition Metal Oxide Nanomaterials
National Engineering Research Center of Electromagnetic Radiation Control Materials
2016-2025
University of Electronic Science and Technology of China
2016-2025
Shanghai East Hospital
2025
Chongqing University of Science and Technology
2024
Sichuan Cancer Hospital
2024
South China University of Technology
2024
Ministry of Agriculture Livestock and Fisheries
2024
Zhejiang University of Technology
2020-2023
SINOPEC Research Institute of Safety Engineering Co., Ltd.
2023
Sinopec (China)
2023
The wide angular-range chopper spectrometer ARCS at the Spallation Neutron Source (SNS) is optimized to provide a high neutron flux sample position with large solid angle of detector coverage. instrument incorporates modern instrumentation, such as an elliptically focused guide, speed magnetic bearing choppers, and massive array (3)He linear sensitive detectors. Novel features include use gate valve between vacuum chambers placement detectors within vacuum, both which window-free final...
Cubic scandium trifluoride (ScF3) has a large negative thermal expansion over wide range of temperatures. Inelastic neutron scattering experiments were performed to study the temperature dependence lattice dynamics ScF3 from 7 750 K. The measured phonon densities states show anharmonic contribution with stiffening modes around 25 meV. Phonon calculations first-principles methods identified individual in states, and frozen showed that some motions F atoms transverse their bond direction...
Thermal conductivity of the Earth’s lower mantle greatly impacts convection style and affects heat conduction from core to mantle. Direct laboratory measurement thermal minerals remains a technical challenge at pressure-temperature (P-T) conditions relevant mantle, previously estimated values are extrapolated low P-T data based on simple empirical transport models. By using numerical technique that combines first-principles electronic structure theory Peierls–Boltzmann theory, we predict...
Raman spectra of rutile titanium dioxide (TiO${}_{2}$) were measured at temperatures from 100 to 1150 K. Each mode showed unique changes with temperature. Beyond the volume-dependent quasiharmonicity, explicit anharmonicity was large. A new method developed fit thermal broadenings and shifts peaks a full calculation kinematics three-phonon four-phonon processes, allowing cubic quartic components be identified for each mode. dominant role phonon-phonon on phonon is reported. Force-field...
A photo-triggered self-catalyzed fluoroalkylation/cyclization of quinazolinones containing unactivated alkenes with various fluoroalkyl bromides has been developed.
A novel visible-light-induced radical tandem trifluoromethylation/cyclization of unactivated alkenes with sodium perfluoroalkanesulfinates (Rf = CF3, C3F7, C4F9, C6F13, C8F17) under air atmosphere has been developed. range quinazolinones containing alkene moiety and were compatible this transformation, leading to a variety perfluoroalkyl-substituted quinazoline alkaloids. Remarkably, the experiment can be carried out without any metal catalyst, strong oxidant, or external photosensitizer.
Abstract In this study, low-temperature fired CaMg 1− x Li 2 Si O 6 microwave dielectric ceramics were prepared via the traditional solid-state reaction method. process, 0.4 wt% CO 3 -B -SiO -CaCO -Al (LBSCA) glass was added as a sintering aid. The results showed that consisted of CaMgSi main phase. second phases CaSiO always existing and SiO occurring at substitution content > 0.05. + effectively lowered temperature due to LBSCA contributed grain densification, most homogeneous...
A green and efficient strategy for the synthesis of quinazolinone derivatives via photo-induced decarboxylative cascade radical acylation/cyclization unactivated alkenes has been developed under oxidant photocatalyst free conditions.
Abstract Microwave ceramic with low‐sintering temperature is one of the most important classes material to realize integration and miniaturization microwave devices. In this work, in order simultaneously low‐temperature sintering good dielectric properties, CaMgSi 2 O 6 – x LiF was sintered at various temperatures using as a aid. comparison ( = 0) 1250°C, desirable properties ε r 7.45, Qf 64 800 GH z, τ f −34 ppm/°C chemical compatibility Ag electrodes, were achieved 900°C when adding wt%...
Si/Ca ratio-dependent structure of borosilicate.
A key requirement for achieving high-density integration of terahertz (THz) systems is a strongly confining single-mode and low-loss waveguide. Several waveguide solutions based on technologies from both electronics photonics have been proposed; among these, hollow-core waveguides are one the best options guiding THz radiation due to their very low material absorption air. However, minimize reflection losses, typically core diameter larger than operating wavelength, as consequence multimode....
Abstract An operationally simple aqueous phase three‐component photochemical strategy for the alkylation of quinoxalin‐2(1 H )‐ones with diethyl α ‐bromomalonate and unactivated alkenes in absence both photoredox catalysts additive has been developed. This reaction is driven by activity electron donor‐acceptor (EDA) complexes formed ‐bromomalonate. Irradiation visible light triggered single‐electron transfer (SET) from to ‐bromomalonate, inducing formation corresponding alkyl radical...
Permeability spectra of NiZn ferrite with different microstructures had been resolved into contributions domain wall resonance and spin rotation relaxation. The fitting results permeability dispersion revealed the relationships among resonance, relaxation mechanisms, microstructures. Pcv (power loss) was analyzed by dividing Ph (hysteresis Pe+Pr (eddy current loss residual from frequency dependence power loss. When excited under large flux density, sample larger average grain size closed...
A two-step sintering process has been adopted to produce NiZn ferrite with composition of (NiO)0.35(ZnO)0.57(CuO)0.08(Fe2O3). The densification, microstructure, and magnetic properties the have investigated compared those ferrites produced by traditional final-stage process. It was found that sample a high temperature 1200 °C lower 1100 attained more than 96% theoretical density had uniform microstructure small average grain size. also exhibited good performances in terms permeability...
A long-range surface plasmon resonance (LRSPR) sensor based on dielectric/silver-coated hollow fiber (HF) is proposed. It can detect the refractive index (RI) of sensed liquid filled in core sensor. HF LRSPR with 90-nm-thick silver layer and 260-nm-thick OC300 fabricated. Experiments are taken to evaluate performance by measuring transmission spectra. Theoretical analysis a ray model also taken, results agree well experimental results. The proposed has similar sensitivity but much smaller...