A5040908867- Electromagnetic wave absorption materials
- Advanced Antenna and Metasurface Technologies
- Metamaterials and Metasurfaces Applications
- Magnetic properties of thin films
- Magnetic Properties and Synthesis of Ferrites
- Magnetic Properties of Alloys
- Metallic Glasses and Amorphous Alloys
- Magnetic Properties and Applications
- Aluminum Alloys Composites Properties
- Magnetic and transport properties of perovskites and related materials
- Electronic and Structural Properties of Oxides
- Crystallization and Solubility Studies
- Rare-earth and actinide compounds
- Full-Duplex Wireless Communications
- X-ray Diffraction in Crystallography
- Microwave and Dielectric Measurement Techniques
- Multiferroics and related materials
- Dielectric materials and actuators
- Antenna Design and Analysis
- Additive Manufacturing and 3D Printing Technologies
- Manufacturing Process and Optimization
- Magneto-Optical Properties and Applications
- Advanced Memory and Neural Computing
- Characterization and Applications of Magnetic Nanoparticles
- Electromagnetic Scattering and Analysis
Lanzhou University
2016-2025
Zhejiang University of Technology
2016-2024
Ministry of Education of the People's Republic of China
2013-2020
Lanzhou City University
2015-2019
Fudan University
2018
Beihang University
2015-2016
State Council of the People's Republic of China
2015
Oak Ridge National Laboratory
2013-2014
Pacific Northwest National Laboratory
2013
Southwest University
2013
The reflection loss (RL) properties including the frequency, intensity, and bandwidth of absorption peaks for flake-shaped carbonyl-iron particle/paraffin composite were investigated in detail. By measuring coefficient without (S11-OPEN) with (S11-SHORT) a backed metal plate, origin RL peak was directly verified. separated electromagnetic wave energy reflected at air-absorber interface absorber-metal plate achieved from S11-OPEN S11-SHORT parameters, they used to explain intensity variation...
Nearly monodisperse cobalt ferrite (CoFe2O4) nanoparticles without any size-selection process have been prepared through an alluring method in oleylamine/ethanol/water system. Well-defined nanospheres with average size of 5.5 nm synthesized using metal chloride as the law materials and oleic amine capping agent, a general liquid-solid-solution (LSS) process. Magnetic measurement indicates that particles exhibit very high coercivity at 10 K perform superparamagnetism room temperature which is...
In this paper, ZnO nanowires and nanotrees have been prepared their microwave absorption properties investigated in detail. Complex permittivity permeability of the nanostructures paraffin composites measured a frequency 0.1–18 GHz. Excellent performances observed nanotree composite compared to nanowire composite, maximum is enhanced as concentration increases composite. The value minimum reflection loss for with 60 vol % −58 dB at 4.2 GHz thickness 4.0 mm. Such strong attributed unique...
Soft magnetic FeCo@C nanoflakes were prepared by a simple anoxic annealing technique.
The double resonance behavior of microwave magnetic permeability has been observed for multiwalled carbon nanotube composites containing Ni catalyst. One them is due to the natural at 6.00GHz and another exchange 10.11GHz. dependent on magnetocrystalline anisotropy shape nanostick catalyst calculated result mode with a few modifications was close experiment. It believed that coexistence benefial large bandwidth as absorber.
The effective permeability of flake-shaped FeCuNbSiB particles/nonmagnetic matrix composition in high frequency was measured and calculated. In contrast to the relatively larger size irregular shape particles, flake particles have higher permeability. results are attributed different magnetic loss mechanisms. According skin-effect criterion, we find that is mainly caused by natural resonance, compared with eddy current effect particles. Using anisotropy, soft overcome difficulty small...
Microwave absorber using hierarchically branched Ni nanowires based composite was introduced in this work. The nanostructure constituents greatly suppressed the eddy current and improved magnetic anisotropy. Their with wax matrix showed strong broadband electromagnetic attenuation around 8.23 GHz where mode excited. resonance absorption character discussed by fitting permeability spectrum well-known theoretical equations (Landau-Lifshitz-Gilbert equation Kittel formula).
Abstract The ability to design and fabricate electronic devices with reproducible properties using complex oxides is critically dependent on our controllably synthesize these materials in thin‐film form. Structure‐property relationships are intimately tied film interface composition. Here the effect of cation stoichiometry structural quality defect formation LaCrO 3 heteroepitaxial films prepared molecular beam epitaxy reported. From first principles regions stability various candidate...
Converting external physical information into tactile sensations for efficient dynamic processing like human beings is crucial edge applications such as intelligent prosthetics and robotics. Reservoir computing, a bio-inspired computing paradigm, excels at temporal signals offers advantages low training costs easy deployment on devices. Many have been developed reservoir using However, there has paucity of research to simulate the system. Furthermore, implementation reusable system...
Flake-shaped FeCuNbSiB particles were fabricated by ball milling the annealed ribbons. The composites of flake particles/paraffin wax prepared with and without rotational orientation in an applied magnetic field. complex permeability was measured frequency range 0.1–18 GHz. oriented composite showed higher resonance compared unoriented one, while its value (μ0−1)fr reached 128.9 GHz exceeded Snoek’s limit. Considering random uniform distribution planes composites, respectively, real part...
In this work, we design a novel polarization converter based on metasurface with double w-shaped unit cells. The proposed can convert linearly polarized incident waves into its cross reflective counterparts in very wide band high efficiency. Theoretical analysis and simulation results show that the achieve 90° rotation, while conversion ratio (PCR) is above 90% frequency range from 8.44 GHz to 24.96 GHz, relative bandwidth be up 99%. measured agree well results. designed has simple geometry,...
Magnetic nanostructures with conical shape are highly desired for pursuing extraordinary magnetic properties and microwave absorption. However, the fabrication of such controlled size uniformities alignment is not yet realized. Accordingly, their application as absorber well understood. Here, we report on first demonstration soft nickel nanocone arrays sharp geometry, large aspect ratio, uniform size, parallel alignment. The imaginary part relative complex permeability shows multiband...