A5110889462- Luminescence Properties of Advanced Materials
- Chemical Synthesis and Analysis
- Solid-state spectroscopy and crystallography
- Photorefractive and Nonlinear Optics
- Advanced Chemical Physics Studies
- Supramolecular Self-Assembly in Materials
- Magnetic Properties and Applications
- Glass properties and applications
- Lanthanide and Transition Metal Complexes
- Magnetic Properties of Alloys
- Spectroscopy and Quantum Chemical Studies
- Magnetism in coordination complexes
- Lubricants and Their Additives
- Enzyme Structure and Function
- Machine Learning in Bioinformatics
- Quantum Dots Synthesis And Properties
- Magnetic properties of thin films
- Crystal Structures and Properties
- Protein Structure and Dynamics
- Solid State Laser Technologies
- Molecular spectroscopy and chirality
- Photochemistry and Electron Transfer Studies
- Enzyme Production and Characterization
- Chalcogenide Semiconductor Thin Films
- Tribology and Wear Analysis
Xi'an University of Technology
2024
China University of Mining and Technology
2024
Motor Coach Industries (United States)
2023
Sichuan Normal University
1995-2007
Institute of Solid State Physics
1995-2007
University of Electronic Science and Technology of China
2006
Tianjin Normal University
2006
Georgi Nadjakov Institute of Solid State Physics
1994-1995
University of Science and Technology of China
1982
The demagnetization process of an exchange-coupled hard/soft/hard magnetic system and its coercivity mechanism are investigated within a micromagnetic framework. calculation reveals that the is three-step process: (i) it begins with nucleation transition region, (ii) subsequent evolution domain wall near interface, (iii) irreversible domain-wall motion from soft phase into hard phase. As thickness interlayer decreases, dominant switches pinning to nucleation. However, for very thin...
The fire plume behavior of over-ventilated compartment is believed to be related with the façade fire. When reattached wall, combustible materials over building wall are potential ignited soon. To investigate window spill trajectory intermediate-scale fires, a modeling set up by using energy conservation equation and spread theory. temperature history conducted 1.35 m (L) × (H) (W) opening aspect varied from 1.12 4.44 HRR differed 200 kW 1000 kW. recorded thermocouple mesh IR camera. It...
It is shown, by investigating the ESR parameters, that impurity ${\mathrm{Fe}}^{3+}$ ion substitutes ${\mathrm{Nb}}^{5+}$ rather than ${\mathrm{Li}}^{+}$, with use of generalized crystal-field theory and a complete diagonalization procedure.
An approximately microscopic model is developed for the cluster and applied to study optical data electron paramagnetic resonance (EPR) g-factors zero-field splitting D-value in . Analysis of EPR indicate that ions substitute at Nb sites Nb-vacancy (Li) simultaneously. The results are good agreement with experimental findings. This means substitution site can be interpreted uniformly.
Analytical expressions for calculating the electron paramagnetic resonance parameters D, a, and F are developed using a complete diagonalization procedure 3${\mathit{d}}^{5}$ ions in low-symmetry field. As illustrations, formulas have been applied to RbCdF:${\mathrm{Mn}}^{2+}$, ${\mathrm{RbMnF}}_{3}$:${\mathrm{Mn}}^{2+}$, ${\mathrm{Rb}}_{2}$${\mathrm{CdF}}_{4}$:${\mathrm{Mn}}^{2+}$, \ensuremath{\alpha}-${\mathrm{Al}}_{2}$${\mathrm{O}}_{3}$:${\mathrm{Fe}}^{3+}$. Calculations indicate that...
A microscopic model for the high-pressure-induced spectral shifts in ruby was developed based on both exact complete energy matrix diagonalization procedure and an approximately equivalent self-consistent-field d-orbital model. The calculated results are good agreement with experimental data up to 1650 kbar. predicted of optical electron paramagnetic spectra can be tested by further measurements.
The g-factor formulas of ${3\mathrm{d}}^{5}$ ions in ${\mathrm{C}}_{3\mathrm{v}}$ symmetry are developed based on the equivalence between phenomenological spin Hamiltonian and microscopic Zeeman interaction. universal ones do not depend specific interaction model. Diagonalization complete within whole configuration yields theoretical zero-field splitting D, a, a-F, g factors. results for ${\mathrm{Mn}}^{2+}$ at ${\mathrm{Li}}^{+}$ site ${\mathrm{LiNbO}}_{3}$ agree well with experimental...
The coercivity of magnetic thin film having a two-dimensional easy-axis distribution is investigated within the framework simple micromagnetic model. It found that decreases from 0.14H(K) to minimum 0.07H(K) as thickness increases, where H(K) anisotropy field. substantially lower than given by Stoner-Wohlfarth model and consistent with available experimental data. calculated hysteresis loop initial magnetization curve are also in good agreement experiments.
The relationship between the EPR cubic parameter a-value and local structure of ions in crystals has been established by utilizing crystal-field-like model. A general method for calculating both compressibility thermal expansion coefficient impurities proposed. Results show that its pressure temperature shifts can be interpreted uniformly. It is also shown that: (a) coefficients deduced are close to those host lattice, within experimental errors, bond lengths quite shell model calculation...
Abstract The dependence of the optical spectrum Mn 2 + −6F − cluster in crystals upon true metal‐ligand (M‐L) bond length is studied by using a new refinement technique for determination structure. Calculations show that present theory gives unified explanation d‐d transition spectra, paramagnetic properties, and thermal expansion Rbmnf 3 Kmgf :Mn .
The paper presents a molecular orbital calculation of the optical spectra and g -shift in NaCl:V2+ NaBr:V2+, which contribution due to electrostatic parameter A0, Trees correction, spin–orbit coupling central transition metal ion ligand are included. calculated agree well with available experimental data. results show that 3s conjunct action between center can not be neglected. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Given the rapid growth of electric vehicle (EV) industry, investigation into state-of-health (SOH) estimation power batteries becomes increasingly important. This study introduces a new approach for estimating battery capacity and internal resistance using field data. Data preprocessing with EV operational status classification are carried out. Health factors constructed based on collected charge discharge Power is calculated ampere-hour integration method during charging, determined...