A5100741296- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- Electromagnetic wave absorption materials
- Magnetic Properties and Synthesis of Ferrites
- Multiferroics and related materials
- Diamond and Carbon-based Materials Research
- Transition Metal Oxide Nanomaterials
- Ferroelectric and Piezoelectric Materials
- Magneto-Optical Properties and Applications
- Catalytic Processes in Materials Science
- Advanced Antenna and Metasurface Technologies
- Magnetic properties of thin films
- Boron and Carbon Nanomaterials Research
- Photochromic and Fluorescence Chemistry
- Anodic Oxide Films and Nanostructures
- Photochemistry and Electron Transfer Studies
- Metamaterials and Metasurfaces Applications
- Electronic and Structural Properties of Oxides
- Photopolymerization techniques and applications
- Metal and Thin Film Mechanics
- Aluminum Alloys Composites Properties
- Advanced Chemical Sensor Technologies
- GaN-based semiconductor devices and materials
- Advanced Chemical Physics Studies
- Mercury impact and mitigation studies
Tsinghua University
2010-2017
State Key Laboratory of New Ceramics and Fine Processing
2010
Heritage Christian University
1992
Hierarchical NiCo<sub>2</sub>O<sub>4</sub>/Co<sub>3</sub>O<sub>4</sub>/NiO composite was fabricated through a facile hydrothermal method, followed by post-annealing treatment.
Manganese (MnFe2O4) nanoparticles are prepared via a facile solvothermal method. The electromagnetic properties investigated in 1–18 GHz, indicating the MnFe2O4 promising materials to be applied as microwave absorbers. wave absorbing mechanism can attributed dielectric loss, magnetic and synergetic effect. permittivity dispersion behavior is explained by Debye dipolar relation expression. complex permeability analyzed using Landau-Lifshitz-Gilbert equation. Natural resonance, exchange eddy...
An electric-field modulation of the magnetic properties through converse magnetoelectric effect was reported in Fe films directly grown on BiScO3–PbTiO3 (BSPT) ceramics based magneto-optical Kerr effect. When an electric field applied piezoelectric BSPT ceramics, coercive (Hc) ferromagnetic changed dramatically and upto 60% change Hc observed. The curve essentially tracked dependence piezostrain field, which definitely demonstrated magnetic-mechanical-electric coupling such film-on-substrate...
Based on the magneto‐optical Kerr effect, we report electric‐field modulation of magnetic properties in Fe/BiScO 3 ‐PbTiO (BSPT) film‐on‐ceramic substrate structure. The Fe films are directly grown fully‐poled BSPT ceramic substrates by magnetron sputtering. An electric field applied parallel to prepolarization direction piezoelectric can induce a reversible increase coercive H c about 30%, whereas an antiparallel cause persistent, tremendous decrease (as large as 97%) , and small reversal...
FeCoB nanocomposites coated with FeCo-oxide layers were synthesized by a simple wet chemical method. Postannealing treatment was carried out from 400°C to 600°C. TEM observations show that the particles have an average diameter of several tens nanometer. The nanoparticles are 3 nm thick layers, exhibiting good core/shell structure. X-ray diffraction analysis demonstrates samples bcc FeCo A maximum saturation magnetization 173.9 emu/g and minimum coercivity 169.1 Oe obtained. Microwave...
Cobalt ferrite (CoFe <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> O xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> ) nanowire arrays with different diameters were prepared in porous anodic aluminum oxide (AAO) template by a sol-gel method. A magnetic field annealing procedure was performed the direction along wire axis (out of sample planes) at 600°C under 10-T applied to orient spinel CoFe crystalline. The morphology studied...
We demonstrate a method to control the distribution of magnetic Co ions in Co-doped SnO2 nanorods by surfactant. The with nanoflower morphology have been synthesized surfactant-assisted hydrothermal method. X-ray absorption fine structure spectra at K-edge reveal that substitute for Sn site lattice. O its simulated performed investigate local environment ions. In experimental spectra, pre-edge peak continues decline addition It shows same trend when number clustered is reduced, which...
The thickness of SnO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> buffer layers has been found to considerably affect the structure and magnetic properties Sn xmlns:xlink="http://www.w3.org/1999/xlink">1-x</sub> Co xmlns:xlink="http://www.w3.org/1999/xlink">x</sub> O films. As buffer-layer increases, lattice constant <i xmlns:xlink="http://www.w3.org/1999/xlink">a</i> Co-O bond length films contract, which suggest gradual relaxation...
The microstructure and defect evolution of Co-doped SnO2 nanostructures have been mediated by the surfactant via a hydrothermal method. is characterized X-ray diffraction Raman spectra in detail. It found that density structural defects considerably increases with increase amount used preparation process. Meanwhile, orange emission enhances dramatically. growth process investigated following time-dependent experiments. Due to existence hollow scrolls growth, mesocrystal lamellar attachment...