A5088423899- Electromagnetic wave absorption materials
- Magnetic Properties of Alloys
- Magnetic properties of thin films
- Magnetic Properties and Synthesis of Ferrites
- Advanced Antenna and Metasurface Technologies
- Rare-earth and actinide compounds
- Magnetic Properties and Applications
- Metallic Glasses and Amorphous Alloys
- Microwave Dielectric Ceramics Synthesis
- Atomic and Subatomic Physics Research
- Metamaterials and Metasurfaces Applications
- Magnesium Alloys: Properties and Applications
- Aluminum Alloys Composites Properties
- X-ray Diffraction in Crystallography
- Nuclear Physics and Applications
- Magnetic and transport properties of perovskites and related materials
- Microstructure and Mechanical Properties of Steels
- Copper Interconnects and Reliability
- Heusler alloys: electronic and magnetic properties
Peking University
2017-2021
Collaborative Innovation Center of Quantum Matter
2017
Crystal structure, magnetic and microwave absorption properties of Celsubg2-xl/subgSmlsubgxl/subgFelsubg17l/subgNlsubg3-δl/subg (x = 0.0, 0.1, 0.2, 0.3, 0.4) have been investigated. In these compounds, the substitution Ce by Sm atoms, effectively modulating ligcl/ig-axial andlig abl/ig-planar components magneto-crystalline anisotropy field, exerts a vital effect on precession moments. Thereby, permeability at high frequency are tuned. The easy magnetization directions (EMDs) all...
The magnetic and microwave absorption properties of Nd <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> Co xmlns:xlink="http://www.w3.org/1999/xlink">16.5</sub> Si xmlns:xlink="http://www.w3.org/1999/xlink">0.5</sub> -paraffin composite have been investigated. compound shows a planar anisotropy with saturation magnetization 114 emu/g at room temperature. exhibits permeability 2.1 frequency 100 MHz, together reflection loss (RL) up to -38...
Co films with thickness ranging from 20 to 160 nm have been fabricated on SiO2/Si substrates by pulsed laser deposition method (PLD). It was found that the crystal tends a structure of bulk hcp increase film thickness, and coercivity decreases increasing due change grain size. A uniaxial anisotropy in less than 120 nm, while more show an unexpected four-fold which is ascribed existence two types (directions) strongly exchange-coupled grains.
The compromise between intensity and resolution is the core issue for powder neutron diffraction techniques. An investigation of optimum configuration a instrument necessary to meet requirement both before final construction. In this paper, performance high-intensity diffractometer (HIPD) at China Advanced Research Reactor has been studied by Monte Carlo simulation convolution methods. virtual detector Monitor-nD with super fine recording elements was used record patterns simulated HIPD....
Using Fe nanoparticles as raw material, we manufactured <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">16</sub> N xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> by hydrogen reduction and ammonia nitriding process. X-ray diffractometer (XRD) Mössbauer spectroscopy analyses show that the prepared are composed of <inline-formula xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\alpha $ </tex-math></inline-formula> -Fe....
The site preference of N atom for R2Fe14BNx (R= Pr, Nd) and the interstitial nitrogen effect on magnetic properties have been studied by first-principles method. It was found that is more likely to occupy 4e Pr2Fe14BNx compound, while 4f Nd2Fe14BNx. When atoms entering some specific crystal sites (such as 2a 4f), total moments these compounds are not reduced, but slightly increased. Although doping may reduce R2Fe14B in cases optimal occupancy, volumetric caused can still change electron...