A5103005239- Magnetic properties of thin films
- Photonic and Optical Devices
- Quantum and electron transport phenomena
- Magneto-Optical Properties and Applications
- Photonic Crystals and Applications
- Advanced Photocatalysis Techniques
- Quantum Dots Synthesis And Properties
- Multiferroics and related materials
- Physics of Superconductivity and Magnetism
- Magnetic Properties and Synthesis of Ferrites
- TiO2 Photocatalysis and Solar Cells
- Gas Sensing Nanomaterials and Sensors
- Copper-based nanomaterials and applications
- Magnetic Properties and Applications
- Characterization and Applications of Magnetic Nanoparticles
- Semiconductor Quantum Structures and Devices
- Electromagnetic wave absorption materials
- Terahertz technology and applications
- Advanced Photonic Communication Systems
- ZnO doping and properties
- Microwave Dielectric Ceramics Synthesis
- Semiconductor materials and interfaces
- Solar-Powered Water Purification Methods
- Chalcogenide Semiconductor Thin Films
- Topological Materials and Phenomena
University of Electronic Science and Technology of China
2015-2024
National Engineering Research Center of Electromagnetic Radiation Control Materials
2015-2024
State Key Laboratory of Electronic Thin Films and Integrated Devices
2022
Xihua University
2018
Xi'an Jiaotong University
2012-2013
Boston University
2009
Transition-metal (TM)-ion-doped TiO2 materials are of great importance for photocatalysis- and photoelectrochemical (PEC)-related applications. We introduced a facile, low-cost, scalable doping method TM ions (Cr, Co, Cu, Fe, Mn, etc.) into nanotubes (NTs), while maintaining their high-ordered tubular structures (with ∼120 nm outside diameter). Both crystallization processes were simultaneously accomplished in aqueous solution at temperature as low ∼90 °C, the fastest process could be 30 min...
LiZn ferrite ceramics with high saturation magnetization (4πMs) and low ferromagnetic resonance line widths (ΔH) represent a very critical class of material for microwave devices. Many existing approaches emphasize promotion the grain growth (average size is 10–50 μm) to improve gyromagnetic properties at relatively sintering temperatures. This paper describes new strategy obtaining uniform compact grains ∼2 enhanced magnetic performance by suppressing in great detail. The ferrites formula...
Abstract Activation energy and diffusion kinetics are important factors for grain growth densification. Here, Bi 2 O 3 was introduced into Li 0.43 Zn 0.27 Ti 0.13 Fe 2.17 4 ferrite ceramics via a presintered process to lower the reaction activation achieve low temperature sintering. Interestingly, 3+ ions entered lattice substituted in B‐site (i.e., pure LiZn spinel ferrite). Also, SEM image results show that ‐substituted have critical (920°C), which is very advantageous LTCC technology....
Inverted pyramid hole arrays were fabricated by photolithography and used as templates to direct the growth of colloidal nanoparticle assemblies. Cobalt ferrite nanoparticles deposit in holes yield high quality magnetic assembly carefully controlling evaporation carrier fluid. Magnetic measurements indicate that preferentially magnetize perpendicular substrate.
Graphene/silicon hybrid diodes have been proven efficient for broad-band terahertz (THz) modulation with electrical and optical stimuli. However, the optimal protocol to apply stimuli has not well-determined obtain best performance. Here, band theory of diode used analyze underlying mechanism help determine protocol. Monolayer gold nanoparticles (AuNPs) were coated on graphene/silicon enhance Both high depth (∼93%) rate (∼4.6 kHz) obtained AuNP-coated using proper method. To explore a THz...
Abstract We present a reconfigurable nanoscale spin-wave directional coupler based on spin-orbit torque (SOT). By micromagnetic simulations, it is demonstrated that the functionality and operating frequency of proposed device can be dynamically switched by inverting whole or part relative magnetic configuration dipolar-coupled waveguides using SOT. Utilizing effect sudden change in coupling length, power divider realized. The opens way for two-dimensional planar magnonic integrated circuits.
A magnetite/iron foil (MIF) composite was synthesized as a heterogeneous Fenton-like catalyst. The MIF catalyst effectively degraded Rhodamine B under neutral conditions (degradation efficiency = 86%), avoiding the procedure of pH adjustment. could be conveniently recycled without filtration, and advantages stability reusability made it promising in practical wastewater treatment.
Germanium Tin (GeSn) films have drawn great interest for their visible and near-infrared optoelectronics properties. Here, we demonstrate large area nanometer thin grown on highly flexible aluminum foil substrates using low-temperature molecular beam epitaxy (MBE). Ultra-thin (10-180 nm) GeSn film-coated foils display a wide color spectra with an absorption wavelength ranging from 400-1800 nm due to its strong optical interference effect. The light ratio GeSn/Al heterostructures can be...
A terahertz spatial modulator is the critical component for active imaging using compressive sensing. Here small silicon pieces were put in arrays on flexible polymer substrate to fabricate semiconductor modulators. By doing this, inter-diffusion of photo-generated charge carriers prevented better resolution, and flexibility achieved. Since size comparable wavelength wave, dielectric properties gap are very different from silicon, optical modulation each element large silicon. In this...
A soft/hard exchange-spring coupled bilayer magnetic structure is proposed to obtain a narrow channel for spin-wave propagation. Micromagnetic simulations show that broad-band Damon-Eshbach geometry spin waves are strongly constrained within the and propagate effectively with high group velocity. The beam width of bound almost independent from frequency smaller than 24nm. Two side beams appearing at low-frequency excitation demonstrated be spins by dipole-dipole interaction. In contrast...