A5007265691- Multiferroics and related materials
- 2D Materials and Applications
- Magnetic and transport properties of perovskites and related materials
- Ferroelectric and Piezoelectric Materials
- Graphene research and applications
- Advanced Condensed Matter Physics
- Topological Materials and Phenomena
- Perovskite Materials and Applications
- MXene and MAX Phase Materials
- Quantum and electron transport phenomena
- Electronic and Structural Properties of Oxides
- Magnetic properties of thin films
- Heusler alloys: electronic and magnetic properties
- X-ray Diffraction in Crystallography
- Advanced Photocatalysis Techniques
- Acoustic Wave Resonator Technologies
- Crystallization and Solubility Studies
- Carbon Nanotubes in Composites
- Boron and Carbon Nanomaterials Research
- Machine Learning in Materials Science
- ZnO doping and properties
- Physics of Superconductivity and Magnetism
- Molecular Junctions and Nanostructures
- Solid-state spectroscopy and crystallography
- Catalytic Processes in Materials Science
Shanghai University
2016-2025
Fuzhou University
2017-2025
Fujian Normal University
2025
Huawei Technologies (China)
2025
Zhejiang Lab
2021-2024
Xi'an Jiaotong University
2010-2024
Lanzhou University
2021-2024
Peking University
2017-2024
Hainan University
2024
ShangHai JiAi Genetics & IVF Institute
2022-2023
We propose realizing the quantum anomalous Hall effect by proximity coupling graphene to an antiferromagnetic insulator that provides both broken time-reversal symmetry and spin-orbit coupling. illustrate our idea performing ab initio calculations for adsorbed on (111) surface of BiFeO3. In this case, we find proximity-induced exchange field in is about 70 meV, a topologically nontrivial band gap opened Rashba The size depends separation between thin film substrate, which can be tuned...
Transition-metal dichalcogenides (TMDs) monolayers have been considered as important two-dimensional semiconductor materials for the study of fundamental physics in field spintronics. However, out-of-plane mirror symmetry TMDs may constrain electrons' degrees freedom and it limit spin-related applications. Recently, a newly synthesized Janus MoSSe was found to intrinsically possess both in-plane inversion mirror-symmetry breaking. Here we performed first-principles calculations order...
The prospect of controlling the magnetization (M) a material is great importance from viewpoints fundamental physics and future applications emerging spintronics. A class rare-earth orthoferrites RFeO3 (R element) materials exhibit striking physical properties spin switching reversal induced by temperature and/or applied magnetic field. Furthermore, due to novel magnetic, magneto-optic multiferroic etc., are attracting more interests in recent years. We have prepared investigated prototype...
In this work, we apply a carbon nitride semiconductor with crystalline poly(triazine imide) (PTI) frameworks to photocatalytic overall water splitting.
Based on the first-principles prediction, we report magnetoelectric coupling effect in two-dimensional multiferroic bilayer ${\mathrm{VS}}_{2}$. The ground-state $3R$-type stacking breaks space inversion symmetry, therefore introducing a spontaneous polarization perpendicular to layer plane. We further reveal that out-of-plane ferroelectric of ${\mathrm{VS}}_{2}$ can be reversed upon interlayer sliding an in-plane translation. Each has ferromagnetic state with opposite magnetic moment...
Catalytic combustion of volatile organic compounds (VOCs) at low temperatures is still an urgent issue to be solved. Herein, low-temperature toluene over Cu-doped SmMn2O5 mullite catalysts via creating highly active Cu2+-O-Mn4+ sites has been originally demonstrated. exhibited 90% conversion 206 °C and displayed robust stability even in the presence water. It demonstrated that Cu doping created composite were more exposed after removing surface Sm species acid-etching. Benefiting from this,...
The development of machine-learning interatomic potentials has immensely contributed to the accuracy simulations molecules and crystals. However, creating for magnetic systems that account both moments structural degrees freedom remains a challenge. This work introduces SpinGNN, spin-dependent potential approach employs graph neural network (GNN) describe systems. SpinGNN consists two types edge GNNs: Heisenberg GNN (HEGNN) spin-distance (SEGNN). HEGNN is tailored capture Heisenberg-type...
We report an experimental and computational study of single-crystal NdFeO${}_{3}$, which features two inequivalent magnetic sublattices, namely, Fe Nd sublattices that are coupled in antiparallel fashion. This paper reveals a strong interaction between 3$d$ 4$f$ electrons the along with spin-lattice coupling drives extremely interesting state is highly sensitive to orientation history weak field. The following phenomena particularly remarkable: (1) sharply contrasting magnetization $M$($T$)...
An ab initio scheme is developed, and first-principles calculations are performed, to investigate ferromagnetism in ${\text{BiFeO}}_{3}$ (BFO) thick ultrathin films. These systems all possess a weak magnetization that results from spin canting (that induced by the tilting of oxygen octahedra) increases 0 $\ensuremath{\simeq}0.027{\ensuremath{\mu}}_{B}$ as temperature decreased below Neel temperature. Such findings contradict suggestion coupling between magnetic dipoles mismatch strain leads...
The interaction of N two-level atoms with a single-mode light field is an extensively studied many-body problem in quantum optics, first analyzed by Dicke the context superradiance. A characteristic such systems cooperative enhancement coupling strength factor N. In this study, we extended cooperatively enhanced to solid-state system, demonstrating that it also occurs magnetic solid form matter-matter interaction. Specifically, exchange paramagnetic erbium(III) (Er3+) spins iron(III) (Fe3+)...
Abstract Crystalline carbon nitride (CCN)‐based semiconductors have recently attracted widespread attention in solar energy conversion. However, further modifying the photocatalytic ability of CCN always results a trade‐off between high crystallinity and good performance. Herein, facile defect engineering strategy was demonstrated to modify photocatalysts. Results confirmed that obtained D ‐CCN maintained crystallinity; additionally, hydrogen production rate approximately 8 times higher than...
Abstract Perovskite oxides form a fascinating class of materials because they possess many active degrees freedom that result in large variety physical effects. One important structural parameter controlling the behavior perovskites is tilting oxygen octahedral. Among other properties, this coupled with electric and magnetic orders, which leads to novel potentially useful phenomena; recent examples include new mechanisms for improper triggered ferroelectricity, rich phase diagrams, chiral...
We report the synthesis of single phase rare earth orthochromite CeCrO3 and its magnetic properties. A canted antiferromagnetic transition with thermal hysteresis at T = 260 K is observed, a compensation (zero magnetization) near 133 attributed to antiparallel coupling between Ce3+ Cr3+ moments. At low temperature, field induced magnetization reversal starting from 43 for H 1.2 kOe reveals spin flip driven by Zeeman energy net moments applied field. These findings may find potential uses in...
Catalytic oxidation is an effective way to eliminate soot pollution emitted from diesel engines. However, the origination and specific location of active oxygen species are still unclear over noble metal catalysts because complex gas (oxygen)–solid (catalyst)–solid (reactant) reaction systems. Herein, we report high catalytic performance nanoflower-like hydrotalcite-derived CoAlO-supported Ag catalyst synthesized by a facile hydrothermal method for combustion. Our characterization results...
A two-dimensional ferromagnetic semiconductor Cr2Ge2Te6 (CGT) was recently found to possess extraordinary characteristics and has great potential in the emerging field of spintronics. Using first-principles calculations, we examined stabilities this layered system by studying cleavage energies phonon dispersion. The ground state an in-plane spin polarization bandgaps about 0.26 eV Perdew-Burke-Ernzerhof-van der Waals 0.91 Heyd-Scuseria-Ernzerhof functional. Furthermore, employed strain...
Removing valley degeneracy is a necessary condition for manipulating degrees of freedom and storing information in future spintronics. Magnetic proximity effect has been demonstrated to be an effective way introduce exchange interactions, especially the case two-dimensional (2D) van der Waals (vdW) heterostructures. We have explored electronic properties physics 2D ${\mathrm{WSe}}_{2}/{\mathrm{CrI}}_{3}$ using first-principles calculations. Our results show that splitting 2 meV achieved...
Recently, an emergent layered material Td -WTe2 was explored for its novel electron-hole overlapping band structure and anisotropic inplane crystal structure. Here, the photoresponse of mechanically exfoliated WTe2 flakes is investigated. A large anomalous current decrease visible (514.5 nm), mid- far-infrared (3.8 10.6 µm) laser irradiation observed, which can be attributed to light-induced surface bandgap opening from first-principles calculations. The photocurrent responsivity as 40 µA...
Layers of two-dimensional materials stacked with a small twist angle give rise to beating periodic patterns on scale much larger than the original lattice, referred as "moiré superlattice." Here, we demonstrate higher-order moiré" superlattice in twisted trilayer graphene two consecutive angles. We report correlated insulating states near half filling moiré at an extremely low carrier density (∼10^{10} cm^{-2}), which also zero-resistance transport behavior typically expected 2D...