A5100715422- Magnetic properties of thin films
- Magnetic Properties and Applications
- Magneto-Optical Properties and Applications
- Perovskite Materials and Applications
- Organic Electronics and Photovoltaics
- Magnetic and transport properties of perovskites and related materials
- Cold Atom Physics and Bose-Einstein Condensates
- Conducting polymers and applications
- Physics of Superconductivity and Magnetism
- Theoretical and Computational Physics
- Heusler alloys: electronic and magnetic properties
- Strong Light-Matter Interactions
- Advanced Electron Microscopy Techniques and Applications
- Organic Light-Emitting Diodes Research
- Vehicle Dynamics and Control Systems
- Advanced X-ray Imaging Techniques
- Nonlinear Optical Materials Studies
- Thin-Film Transistor Technologies
- Phytochemicals and Antioxidant Activities
- Quantum Dots Synthesis And Properties
- Advanced Fiber Laser Technologies
- Quantum, superfluid, helium dynamics
- Real-time simulation and control systems
- Laser-Ablation Synthesis of Nanoparticles
- Plant Reproductive Biology
Zunyi Normal College
2023-2025
Guangzhou University
2015-2024
Sun Yat-sen University
2009-2024
Nanjing University of Science and Technology
2022
Guangdong Ocean University
2020
Beihang University
2015
The First Affiliated Hospital, Sun Yat-sen University
2014
State Key Laboratory of Optoelectronic Materials and Technology
2008-2011
Soochow University
2009-2010
Institute of Chemistry
2007
A key problem in structured output prediction is direct optimization of the task reward function that matters for test evaluation. This paper presents a simple and computationally efficient approach to incorporate into maximum likelihood framework. By establishing link between log-likelihood expected objectives, we show an optimal regularized achieved when conditional distribution outputs given inputs proportional their exponentiated scaled rewards. Accordingly, present framework smooth...
Abstract Dielectric ceramics with both excellent energy storage and optical transmittance have attracted much attention in recent years. However, the transparent Pb‐free energy‐storage were rare reported. In this work, we prepared relaxor ferroelectric (1 − x )Bi 0.5 Na TiO 3 – NaNbO (BNT– NN) by conventional solid‐state reaction method. We find NN‐doping can enhance polarization breakdown strength of BNT suppressing grain growth restrained reduction Ti 4+ to 3+ . As a result, high...
Brassinazole resistant 1 (BZR1), a brassinosteroid (BR) signaling component, plays pivotal role in regulating numerous specific developmental processes. Our study demonstrated that exogenous treatment with 2,4-epibrassinolide (EBR) significantly enhanced the accumulation of carotenoids and chlorophylls Chinese kale (Brassica oleracea var. alboglabra). The underlying mechanism was deciphered through yeast one-hybrid (Y1H) dual-luciferase (LUC) assays, whereby BoaBZR1.1 directly interacts...
In this study, we analyzed the nutritional components and antioxidant capacity of 17 leaf mustard cultivars, including 13 cultivars from Leshan, 2 Ya’an, Yibin. Significant variations were observed among in terms their composition properties. Our findings revealed that cultivar LS12 exhibited highest levels total chlorophyll, anthocyanidin, flavonoids, phenolics, ferric-reducing power (FRAP). Cultivar YB2 showed higher contents soluble sugar, protein, ABTS capacity, glucosinolates. On a...
Laser-induced spin-wave dynamics in an in-plane magnetized FePt film is studied using all-optical pump-probe magneto-optical Kerr spectroscopy under different external fields and pump fluences. Uniform precession spin wave observed. Nonlinear field dependence of its frequency found well explained by the macrospin model uniform precession. The effective damping shows a significant external-field dependence. Calculation taking account for magnetic inhomogeneity fits well, revealing main origin...
As a classical polymer acceptor material, N2200 has received extensive attention and research in the field of solar cells (PSCs). However, intrinsic properties ground- excited-states N2200, which are critical for application PSCs, remain poorly understood. In this work, excited-state solution film were studied by steady-state time-resolved spectroscopies as well time-dependent density functional theory (TD-DFT) calculations. The transition mechanism absorption peaks was evaluated through...
In this work, we studied influence of post thermal annealing on the performance and charge photogeneration processes PffBT4T-2OD/PC71BM solar cells. As-prepared device exhibits a high-power conversion efficiency 9.5%, much higher than that after annealing. To understand phenomenon, in these cells by means time resolved spectroscopy. We associate degradation cell with reduction exciton dissociation increased bimolecular recombination photogenerated charges as result correlate generation...
Static and dynamic hysteresis loops of TbFeCo amorphous films are measured by vibrating sample magnetometry (VSM) magneto-optical Kerr rotation. The static VSM loop shows a faster magnetization reversal than the does. in sinusoidal alternating magnetic field at 1.14kHz large increase coercivity with respect to coercivity. ultrafast dynamics laser-induced demagnetization recovery is studied femtosecond time-resolved polar rotation spectroscopy, subpicosecond several hundreds picosecond...
Abstract The ultrafast demagnetization dynamics of 3d and 4f spins, respectively, in FeCo Tb TbFeCo alloy film are studied independently by employing a dual-color time-resolved magneto-optical Kerr spectroscopy. spins probed, 800 400 nm light. Two-step observed for both the under excitation laser. In particular, onset spin presents delayed time with respect to one dynamics. Those results clearly reveal strong inter-atomic 3d–5d–4f exchange coupling which drives first-step subpicosecond...
A large area of randomly distributed nanospike as nanostructured template was induced by femtosecond (fs) laser on a silicon substrate in water. Copper oxide (CuO) and palladium (Pd) heterostructured nanofilm were coated the nanospikes magnetron sputtering technology vacuum thermal evaporation coating respectively for construction p-type hydrogen sensor. Compared with conventional gas sensor based CuO working at high temperature, CuO/Pd heterostructure exhibited promising detection...
Magnetic skyrmions are promising potential information carriers for future spintronic devices owing to their nanoscale size, non-volatility and high mobility. In this work, we demonstrate the controlled manipulation of skyrmion motion its implementation in a new concept racetrack logical device by introducing an inhomogeneous perpendicular magnetic anisotropy (PMA) via micromagnetic simulation. Here, PMA can be introduced capping nano-island that serves as tunable barriers/well which...
The fundamental mechanisms of ultrafast demagnetization and magnetization recovery processes in ferromagnetic materials remain incompletely understood. investigation different dynamic features which depend on various physical quantities requires a more systematic approach. Here, the femtosecond laser-induced dynamics L10-Fe0.5Pt0.5 alloy film are studied by utilizing time-resolved magneto-optical Kerr measurements, focusing their dependences excitation fluence ambient temperature over broad...
Inorganic halide perovskite microstructures have presented intriguing potential for the development of high-performance optoelectronic devices. To advance application inorganic microstructures, it is crucial to understand correlation between their morphologies and dynamic properties carriers. In this work, we investigated carrier dynamics in CsPbBr3 microrods microplates primarily by using femtosecond transient absorption spectroscopy. Our results reveal a giant band-gap renormalization...
Ultrafast dynamics of genuine magneto-optical recording across ferrimagnetic compensation points is demonstrated in GdFeCo films using time-resolved polar Kerr spectroscopy combined with a laser-synchronized sinusoidal alternating magnetic field which can reinitialize irreversible initial magnetization state to laser radiating. The external dependence reversal measured and shows that rate accelerates increasing fields. Analysis the Bloch equation linearly dependent on fields within...
A controllable pump-pulse-number magneto-optical Kerr technique combined with an initializing field scanning approach is developed to eliminate and identify memory accumulation effects, respectively, from external history multiple pulse excitations. series of anomalous loops GdFeCo films are measured for different amount pump pulses using this technique, revealing that serious effects exist in continuous-pulse-pumped hysteresis which show illusory information hot coercivity degree...
In this work, charge photogeneration dynamics in PTQ10:Y6 solar cells were studied by steady-state and time-resolved spectroscopies. For neat donor acceptor films, we determined the exciton diffusion coefficients of PTQ10 Y6 as 1.3 × 10−3 cm2·s−1 6.8 cm2·s−1, respectively. Furthermore, find LUMO HOMO level offsets 0.14 eV 0.11 are sufficient for dissociation excitons, blend DIO additive could increase scales phases. The phase increased slightly from 17.2 nm to 20.0 nm, while 2.3 5.8 nm....
A novel method of designing ultra-large photon sieves in visible regime with multi-region structure is proposed and experimentally demonstrated. Design principle that based on both phase matching total pinhole area among regions introduced. The focusing properties the conventional monolithic same numerical aperture terms energy efficiency sidelobe suppression are compared. Two focal length 500 mm diameters 50mm 125 respectively 3 4 at working wavelength 632.8 nm fabricated using UV...
The power-on upshift control in automatic transmissions has a significant effect on the shift quality and is very complex. This paper aims to investigate relationship between limited motor torque performance of electric vehicles. First, simplified model for an vehicle powertrain with general two-speed transmission was built. Then, strategy introduced into model, aim constant output during upshifts. fully utilized flexibility motors specifically focused effects Simulation results demonstrated...